From 9abed217e9e06ca029f8002d8f2763632bdeabf0 Mon Sep 17 00:00:00 2001
From: Anna Topalidi <t.opalidisanna@gmail.com>
Date: Thu, 13 Feb 2025 13:48:46 +0100
Subject: [PATCH 1/3] reminred customization

---
 .../decidim/meetings/admin/copy_meeting.rb    |  3 ++
 .../decidim/meetings/admin/create_meeting.rb  |  3 ++
 .../decidim/meetings/admin/publish_meeting.rb |  2 +-
 .../decidim/meetings/admin/update_meeting.rb  |  3 ++
 .../decidim/meetings/create_meeting.rb        |  6 ++-
 .../decidim/meetings/update_meeting.rb        |  6 ++-
 .../meetings/upcoming_meeting_event.rb        | 32 +++++++++++++++
 .../decidim/meetings/admin/meeting_form.rb    | 18 +++++++++
 .../forms/decidim/meetings/meeting_form.rb    | 18 +++++++++
 .../decidim/meetings/meeting_presenter.rb     |  9 +++++
 .../meetings/admin/meetings/_form.html.erb    | 12 ++++++
 .../decidim/meetings/meetings/_form.html.erb  | 11 +++++
 decidim-meetings/config/locales/en.yml        | 13 ++++--
 ...inder_customization_to_decidim_meetings.rb |  9 +++++
 decidim-meetings/lib/decidim/meetings.rb      |  2 +-
 .../lib/decidim/meetings/test/factories.rb    |  3 ++
 .../spec/commands/admin/copy_meeting_spec.rb  |  4 ++
 .../commands/admin/create_meeting_spec.rb     | 28 +++++++++++++
 .../commands/admin/update_meeting_spec.rb     | 16 ++++++++
 .../spec/commands/create_meeting_spec.rb      | 24 ++++++++++-
 .../spec/commands/update_meeting_spec.rb      | 19 ++++++++-
 .../spec/forms/admin/meeting_form_spec.rb     | 40 ++++++++++++++++++-
 .../spec/forms/meeting_form_spec.rb           | 38 ++++++++++++++++++
 23 files changed, 307 insertions(+), 12 deletions(-)
 create mode 100644 decidim-meetings/db/migrate/20250213114031_add_reminder_customization_to_decidim_meetings.rb

diff --git a/decidim-meetings/app/commands/decidim/meetings/admin/copy_meeting.rb b/decidim-meetings/app/commands/decidim/meetings/admin/copy_meeting.rb
index c9444c97dd31a..b683d64b23e57 100644
--- a/decidim-meetings/app/commands/decidim/meetings/admin/copy_meeting.rb
+++ b/decidim-meetings/app/commands/decidim/meetings/admin/copy_meeting.rb
@@ -69,6 +69,9 @@ def copy_meeting!
             comments_end_time: form.comments_end_time,
             registration_type: form.registration_type,
             registration_url: form.registration_url,
+            reminder_enabled: form.reminder_enabled,
+            send_reminders_before_hours: form.send_reminders_before_hours,
+            reminder_message_custom_content: form.reminder_message_custom_content,
             **fields_from_meeting
           )
         end
diff --git a/decidim-meetings/app/commands/decidim/meetings/admin/create_meeting.rb b/decidim-meetings/app/commands/decidim/meetings/admin/create_meeting.rb
index 560d1b5d9430c..74f8f4d568e33 100644
--- a/decidim-meetings/app/commands/decidim/meetings/admin/create_meeting.rb
+++ b/decidim-meetings/app/commands/decidim/meetings/admin/create_meeting.rb
@@ -59,6 +59,9 @@ def create_meeting!
             comments_enabled: form.comments_enabled,
             comments_start_time: form.comments_start_time,
             comments_end_time: form.comments_end_time,
+            reminder_enabled: form.reminder_enabled,
+            send_reminders_before_hours: form.reminder_enabled ? form.send_reminders_before_hours : nil,
+            reminder_message_custom_content: form.reminder_enabled ? form.reminder_message_custom_content : {},
             iframe_access_level: form.iframe_access_level
           }
 
diff --git a/decidim-meetings/app/commands/decidim/meetings/admin/publish_meeting.rb b/decidim-meetings/app/commands/decidim/meetings/admin/publish_meeting.rb
index 56c59e67ff1d7..86f750bfba7d9 100644
--- a/decidim-meetings/app/commands/decidim/meetings/admin/publish_meeting.rb
+++ b/decidim-meetings/app/commands/decidim/meetings/admin/publish_meeting.rb
@@ -65,7 +65,7 @@ def schedule_upcoming_meeting_notification
           checksum = Decidim::Meetings::UpcomingMeetingNotificationJob.generate_checksum(meeting)
 
           Decidim::Meetings::UpcomingMeetingNotificationJob
-            .set(wait_until: meeting.start_time - Decidim::Meetings.upcoming_meeting_notification)
+            .set(wait_until: meeting.start_time - meeting.send_reminders_before_hours.hours)
             .perform_later(meeting.id, checksum)
         end
       end
diff --git a/decidim-meetings/app/commands/decidim/meetings/admin/update_meeting.rb b/decidim-meetings/app/commands/decidim/meetings/admin/update_meeting.rb
index 0e4c42cf2a2a8..ea8607f2d3a9e 100644
--- a/decidim-meetings/app/commands/decidim/meetings/admin/update_meeting.rb
+++ b/decidim-meetings/app/commands/decidim/meetings/admin/update_meeting.rb
@@ -64,6 +64,9 @@ def update_meeting!
             comments_enabled: form.comments_enabled,
             comments_start_time: form.comments_start_time,
             comments_end_time: form.comments_end_time,
+            reminder_enabled: form.reminder_enabled,
+            send_reminders_before_hours: form.reminder_enabled ? form.send_reminders_before_hours : nil,
+            reminder_message_custom_content: form.reminder_enabled ? form.reminder_message_custom_content : nil,
             iframe_access_level: form.iframe_access_level
           )
         end
diff --git a/decidim-meetings/app/commands/decidim/meetings/create_meeting.rb b/decidim-meetings/app/commands/decidim/meetings/create_meeting.rb
index 841cf3bc4e3de..ed5fc2424f35c 100644
--- a/decidim-meetings/app/commands/decidim/meetings/create_meeting.rb
+++ b/decidim-meetings/app/commands/decidim/meetings/create_meeting.rb
@@ -32,6 +32,7 @@ def call
       def create_meeting!
         parsed_title = Decidim::ContentProcessor.parse_with_processor(:hashtag, form.title, current_organization: form.current_organization).rewrite
         parsed_description = Decidim::ContentProcessor.parse(form.description, current_organization: form.current_organization).rewrite
+        parsed_reminder_message = Decidim::ContentProcessor.parse(form.reminder_message_custom_content, current_organization: form.current_organization).rewrite
 
         params = {
           scope: form.scope,
@@ -56,6 +57,9 @@ def create_meeting!
           type_of_meeting: form.clean_type_of_meeting,
           component: form.current_component,
           published_at: Time.current,
+          reminder_enabled: form.reminder_enabled,
+          send_reminders_before_hours: form.reminder_enabled ? form.send_reminders_before_hours : nil,
+          reminder_message_custom_content: form.reminder_enabled ? { I18n.locale => parsed_reminder_message } : {},
           iframe_embed_type: form.iframe_embed_type,
           iframe_access_level: form.iframe_access_level
         }
@@ -77,7 +81,7 @@ def schedule_upcoming_meeting_notification
         checksum = Decidim::Meetings::UpcomingMeetingNotificationJob.generate_checksum(meeting)
 
         Decidim::Meetings::UpcomingMeetingNotificationJob
-          .set(wait_until: meeting.start_time - Decidim::Meetings.upcoming_meeting_notification)
+          .set(wait_until: meeting.start_time - form.send_reminders_before_hours.hours)
           .perform_later(meeting.id, checksum)
       end
 
diff --git a/decidim-meetings/app/commands/decidim/meetings/update_meeting.rb b/decidim-meetings/app/commands/decidim/meetings/update_meeting.rb
index 3bc92672e1717..f46b523601921 100644
--- a/decidim-meetings/app/commands/decidim/meetings/update_meeting.rb
+++ b/decidim-meetings/app/commands/decidim/meetings/update_meeting.rb
@@ -38,6 +38,7 @@ def call
       def update_meeting!
         parsed_title = Decidim::ContentProcessor.parse_with_processor(:hashtag, form.title, current_organization: form.current_organization).rewrite
         parsed_description = Decidim::ContentProcessor.parse(form.description, current_organization: form.current_organization).rewrite
+        parsed_reminder_message = Decidim::ContentProcessor.parse(form.reminder_message_custom_content, current_organization: form.current_organization).rewrite
 
         Decidim.traceability.update!(
           meeting,
@@ -63,6 +64,9 @@ def update_meeting!
             registrations_enabled: form.registrations_enabled,
             type_of_meeting: form.clean_type_of_meeting,
             online_meeting_url: form.online_meeting_url,
+            reminder_enabled: form.reminder_enabled,
+            send_reminders_before_hours: form.reminder_enabled ? form.send_reminders_before_hours : nil,
+            reminder_message_custom_content: form.reminder_enabled ? { I18n.locale => parsed_reminder_message } : {},
             iframe_embed_type: form.iframe_embed_type,
             iframe_access_level: form.iframe_access_level
           },
@@ -97,7 +101,7 @@ def schedule_upcoming_meeting_notification
         checksum = Decidim::Meetings::UpcomingMeetingNotificationJob.generate_checksum(meeting)
 
         Decidim::Meetings::UpcomingMeetingNotificationJob
-          .set(wait_until: meeting.start_time - Decidim::Meetings.upcoming_meeting_notification)
+          .set(wait_until: meeting.start_time - meeting.send_reminders_before_hours.hours)
           .perform_later(meeting.id, checksum)
       end
     end
diff --git a/decidim-meetings/app/events/decidim/meetings/upcoming_meeting_event.rb b/decidim-meetings/app/events/decidim/meetings/upcoming_meeting_event.rb
index 13bdb903bf367..6cfb4640483f3 100644
--- a/decidim-meetings/app/events/decidim/meetings/upcoming_meeting_event.rb
+++ b/decidim-meetings/app/events/decidim/meetings/upcoming_meeting_event.rb
@@ -4,6 +4,38 @@ module Decidim
   module Meetings
     class UpcomingMeetingEvent < Decidim::Events::SimpleEvent
       include Decidim::Meetings::MeetingEvent
+
+      i18n_attributes :reminders_before_hours
+
+      def email_intro
+        (custom_message.presence || default_email_intro).to_s.html_safe
+      end
+
+      def i18n_options
+        {
+          resource_title: resource_title,
+          resource_path: resource_path,
+          resource_url: resource_url,
+          participatory_space_url: participatory_space_url,
+          participatory_space_title: participatory_space_title,
+          reminders_before_hours: resource.send_reminders_before_hours,
+          scope: event_name
+        }
+      end
+
+      private
+
+      def reminder_message
+        translated_attribute(resource.reminder_message_custom_content)
+      end
+
+      def default_email_intro
+        I18n.t("decidim.events.meetings.upcoming_meeting.email_intro", **i18n_options)
+      end
+
+      def custom_message
+        Decidim::Meetings::MeetingPresenter.new(resource).reminder_message_custom_content
+      end
     end
   end
 end
diff --git a/decidim-meetings/app/forms/decidim/meetings/admin/meeting_form.rb b/decidim-meetings/app/forms/decidim/meetings/admin/meeting_form.rb
index a76eb2ce97bf4..1b95aadc5a998 100644
--- a/decidim-meetings/app/forms/decidim/meetings/admin/meeting_form.rb
+++ b/decidim-meetings/app/forms/decidim/meetings/admin/meeting_form.rb
@@ -21,11 +21,14 @@ class MeetingForm < ::Decidim::Meetings::BaseMeetingForm
         attribute :comments_start_time, Decidim::Attributes::TimeWithZone
         attribute :comments_end_time, Decidim::Attributes::TimeWithZone
         attribute :iframe_access_level, String
+        attribute :reminder_enabled, Boolean, default: true
+        attribute :send_reminders_before_hours, Integer, default: Decidim::Meetings.upcoming_meeting_notification.in_hours
 
         translatable_attribute :title, String
         translatable_attribute :description, String
         translatable_attribute :location, String
         translatable_attribute :location_hints, String
+        translatable_attribute :reminder_message_custom_content, String
 
         validates :iframe_embed_type, inclusion: { in: Decidim::Meetings::Meeting.iframe_embed_types }
         validates :title, translatable_presence: true
@@ -41,6 +44,9 @@ class MeetingForm < ::Decidim::Meetings::BaseMeetingForm
         validates :scope, presence: true, if: ->(form) { form.decidim_scope_id.present? }
         validates :decidim_scope_id, scope_belongs_to_component: true, if: ->(form) { form.decidim_scope_id.present? }
         validates :clean_type_of_meeting, presence: true
+        validates :send_reminders_before_hours,
+                  presence: true, if: :reminder_enabled,
+                  numericality: { only_integer: true, greater_than: 0, if: :reminder_enabled }
         validates(
           :iframe_access_level,
           inclusion: { in: Decidim::Meetings::Meeting.iframe_access_levels },
@@ -69,6 +75,18 @@ def number_of_services
 
         alias component current_component
 
+        def send_reminders_before_hours
+          return nil unless reminder_enabled
+
+          super
+        end
+
+        def reminder_message_custom_content
+          return {} unless reminder_enabled
+
+          super
+        end
+
         # Finds the Scope from the given decidim_scope_id, uses component scope if missing.
         #
         # Returns a Decidim::Scope
diff --git a/decidim-meetings/app/forms/decidim/meetings/meeting_form.rb b/decidim-meetings/app/forms/decidim/meetings/meeting_form.rb
index 7bef17fe9bdd5..f28f6816d04dd 100644
--- a/decidim-meetings/app/forms/decidim/meetings/meeting_form.rb
+++ b/decidim-meetings/app/forms/decidim/meetings/meeting_form.rb
@@ -19,6 +19,9 @@ class MeetingForm < ::Decidim::Meetings::BaseMeetingForm
       attribute :registration_terms, String
       attribute :iframe_embed_type, String, default: "none"
       attribute :iframe_access_level, String
+      attribute :reminder_enabled, Boolean, default: true
+      attribute :send_reminders_before_hours, Integer, default: Decidim::Meetings.upcoming_meeting_notification.in_hours
+      attribute :reminder_message_custom_content, String
 
       validates :iframe_embed_type, inclusion: { in: Decidim::Meetings::Meeting.participants_iframe_embed_types }
       validates :title, presence: true
@@ -34,6 +37,9 @@ class MeetingForm < ::Decidim::Meetings::BaseMeetingForm
       validates :scope, presence: true, if: ->(form) { form.decidim_scope_id.present? }
       validates :decidim_scope_id, scope_belongs_to_component: true, if: ->(form) { form.decidim_scope_id.present? }
       validates :clean_type_of_meeting, presence: true
+      validates :send_reminders_before_hours,
+                presence: true, if: :reminder_enabled,
+                numericality: { only_integer: true, greater_than: 0, if: :reminder_enabled }
       validates(
         :iframe_access_level,
         inclusion: { in: Decidim::Meetings::Meeting.iframe_access_levels },
@@ -56,6 +62,18 @@ def map_model(model)
 
       alias component current_component
 
+      def send_reminders_before_hours
+        return nil unless reminder_enabled
+
+        super
+      end
+
+      def reminder_message_custom_content
+        return {} unless reminder_enabled
+
+        super
+      end
+
       # Finds the Scope from the given decidim_scope_id, uses the compoenent scope if missing.
       #
       # Returns a Decidim::Scope
diff --git a/decidim-meetings/app/presenters/decidim/meetings/meeting_presenter.rb b/decidim-meetings/app/presenters/decidim/meetings/meeting_presenter.rb
index 0a8ccb82f0c48..bb874b75ef946 100644
--- a/decidim-meetings/app/presenters/decidim/meetings/meeting_presenter.rb
+++ b/decidim-meetings/app/presenters/decidim/meetings/meeting_presenter.rb
@@ -76,6 +76,15 @@ def registration_email_custom_content(links: false, all_locales: false)
         end
       end
 
+      def reminder_message_custom_content(links: false, all_locales: false)
+        return unless meeting
+
+        handle_locales(meeting.reminder_message_custom_content, all_locales) do |content|
+          renderer = Decidim::ContentRenderers::HashtagRenderer.new(content)
+          renderer.render(links: links).html_safe
+        end
+      end
+
       # start time and end time in rfc3339 format removing '-' and ':' symbols
       # joined with '/'. This format is used to generate the dates query param
       # in google calendars event link
diff --git a/decidim-meetings/app/views/decidim/meetings/admin/meetings/_form.html.erb b/decidim-meetings/app/views/decidim/meetings/admin/meetings/_form.html.erb
index 2fa6372ca17ed..a4a430fdd960f 100644
--- a/decidim-meetings/app/views/decidim/meetings/admin/meetings/_form.html.erb
+++ b/decidim-meetings/app/views/decidim/meetings/admin/meetings/_form.html.erb
@@ -99,6 +99,18 @@
     </div>
 
     <%= render partial: "decidim/comments/admin/shared/availability_fields", locals: { form: form } %>
+
+    <div class="row column">
+      <%= form.check_box :reminder_enabled, label: t("reminder_enabled", scope: "decidim.meetings.admin.meetings.form"), "data-toggle": "customize_reminder_times" %>
+    </div>
+
+    <div id="customize_reminder_times" data-toggler=".hide" class="row column <%= @form.reminder_enabled ? nil : "hide" %>">
+      <div class="my-4">
+        <%= form.number_field :send_reminders_before_hours, label: t("send_reminder", scope: "decidim.meetings.admin.meetings.form"), help_text: t("reminder_help_text", scope: "decidim.meetings.admin.meetings.form") %>
+      </div>
+
+      <%= form.translated :editor, :reminder_message_custom_content, label: t("reminder_message", scope: "decidim.meetings.admin.meetings.form"), hashtaggable: true, help_text: t("reminder_message_help_text", scope: "decidim.meetings.admin.meetings.form") %>
+    </div>
   </div>
 </div>
 
diff --git a/decidim-meetings/app/views/decidim/meetings/meetings/_form.html.erb b/decidim-meetings/app/views/decidim/meetings/meetings/_form.html.erb
index e655fe5a2fe49..3ebea79e947d4 100644
--- a/decidim-meetings/app/views/decidim/meetings/meetings/_form.html.erb
+++ b/decidim-meetings/app/views/decidim/meetings/meetings/_form.html.erb
@@ -89,6 +89,17 @@
   <label><%= t(".disclaimer", organization: current_component.organization.name) %></label><br>
 </div>
 
+<div class="row column">
+  <%= form.check_box :reminder_enabled, label: t("reminder_enabled", scope: "decidim.meetings.admin.meetings.form"), "data-toggle": "customize_reminder_times" %>
+</div>
+
+<div id="customize_reminder_times" data-toggler=".hide" class="row column <%= @form.reminder_enabled ? nil : "hide" %>">
+  <div class="my-4">
+    <%= form.number_field :send_reminders_before_hours, label: t("send_reminder", scope: "decidim.meetings.admin.meetings.form"), help_text: t("reminder_help_text", scope: "decidim.meetings.admin.meetings.form") %>
+  </div>
+  <%= text_editor_for(form, :reminder_message_custom_content, hashtaggable: true, label: t("reminder_message", scope: "decidim.meetings.admin.meetings.form"), help_text: t("reminder_message_help_text", scope: "decidim.meetings.admin.meetings.form") ) %>
+</div>
+
 <div class="field">
   <%= form.select(
     :user_group_id,
diff --git a/decidim-meetings/config/locales/en.yml b/decidim-meetings/config/locales/en.yml
index 067d5c7408c39..a82ff7f3c963d 100644
--- a/decidim-meetings/config/locales/en.yml
+++ b/decidim-meetings/config/locales/en.yml
@@ -191,10 +191,10 @@ en:
           email_subject: The "%{resource_title}" meeting has enabled registrations.
           notification_title: The <a href="%{resource_path}">%{resource_title}</a> meeting has enabled registrations.
         upcoming_meeting:
-          email_intro: The "%{resource_title}" meeting will start in less than 48h.
-          email_outro: You have received this notification because you are following the "%{resource_title}" meeting. You can unfollow it from the previous link.
-          email_subject: The "%{resource_title}" meeting will start in less than 48h.
-          notification_title: The <a href="%{resource_path}">%{resource_title}</a> meeting will start in less than 48h.
+          email_intro: The "%{resource_title}" meeting will start in less than %{reminders_before_hours}h.
+          email_outro: You have received this notification because you are following the %{resource_title} meeting. You can unfollow it from the previous link.
+          email_subject: The "%{resource_title}" meeting will start in less than %{reminders_before_hours}h.
+          notification_title: The <a href="%{resource_path}">%{resource_title}</a> meeting will start in less than %{reminders_before_hours}h.
     forms:
       meetings:
         attendees_count_help_text: Don't forget to include the total number of attendees at your meeting, whether in person, online or hybrid.
@@ -318,9 +318,14 @@ en:
             location_hints_help: 'Location hints: additional info. Example: the floor of the building if it is an in-person meeting, or the meeting password if it is an online meeting with restricted access.'
             online_meeting_url_help: 'Link: allow participants to connect directly to your meeting'
             registration_url_help: 'Link: allow participants to go on the external service you are using for registrations'
+            reminder_enabled: Reminder enabled
+            reminder_help_text: Participants will receive an email the number of hours specified in advance of themeeting. Leave it empty or zero if no reminder is necessary.
+            reminder_message: Reminder message
+            reminder_message_help_text: Customize the message if necessary. This will be ignored if no reminder is scheduled.
             select_a_meeting_type: Please select a meeting type
             select_a_registration_type: Please select a registration type
             select_an_iframe_access_level: Please select an iframe access level
+            send_reminder: Send a reminder for this meeting
             show_embedded_iframe_help: 'Only a few services allow embedding in meeting or live event from the following domains: %{domains}'
           index:
             title: Meetings
diff --git a/decidim-meetings/db/migrate/20250213114031_add_reminder_customization_to_decidim_meetings.rb b/decidim-meetings/db/migrate/20250213114031_add_reminder_customization_to_decidim_meetings.rb
new file mode 100644
index 0000000000000..4ee18474f3b0d
--- /dev/null
+++ b/decidim-meetings/db/migrate/20250213114031_add_reminder_customization_to_decidim_meetings.rb
@@ -0,0 +1,9 @@
+# frozen_string_literal: true
+
+class AddReminderCustomizationToDecidimMeetings < ActiveRecord::Migration[6.0]
+  def change
+    add_column :decidim_meetings_meetings, :reminder_enabled, :boolean
+    add_column :decidim_meetings_meetings, :send_reminders_before_hours, :integer
+    add_column :decidim_meetings_meetings, :reminder_message_custom_content, :jsonb
+  end
+end
diff --git a/decidim-meetings/lib/decidim/meetings.rb b/decidim-meetings/lib/decidim/meetings.rb
index b9653c5fa2074..1f82ffc623475 100644
--- a/decidim-meetings/lib/decidim/meetings.rb
+++ b/decidim-meetings/lib/decidim/meetings.rb
@@ -26,7 +26,7 @@ module Meetings
 
     # Public Setting that defines the interval when the upcoming meeting will be sent
     config_accessor :upcoming_meeting_notification do
-      2.days
+      48.hours
     end
 
     config_accessor :embeddable_services do
diff --git a/decidim-meetings/lib/decidim/meetings/test/factories.rb b/decidim-meetings/lib/decidim/meetings/test/factories.rb
index 75d723b6f6108..014461b430d5c 100644
--- a/decidim-meetings/lib/decidim/meetings/test/factories.rb
+++ b/decidim-meetings/lib/decidim/meetings/test/factories.rb
@@ -44,6 +44,9 @@
     registration_type { :on_this_platform }
     type_of_meeting { :in_person }
     component { build(:meeting_component) }
+    reminder_enabled { true }
+    send_reminders_before_hours { 48 }
+    reminder_message_custom_content { {} }
     iframe_access_level { :all }
     iframe_embed_type { :none }
 
diff --git a/decidim-meetings/spec/commands/admin/copy_meeting_spec.rb b/decidim-meetings/spec/commands/admin/copy_meeting_spec.rb
index f4002671c2fcf..13671a50f7c49 100644
--- a/decidim-meetings/spec/commands/admin/copy_meeting_spec.rb
+++ b/decidim-meetings/spec/commands/admin/copy_meeting_spec.rb
@@ -50,6 +50,9 @@ module Decidim::Meetings
         comments_enabled: meeting.comments_enabled,
         comments_start_time: meeting.comments_start_time,
         comments_end_time: meeting.comments_end_time,
+        reminder_enabled: meeting.reminder_enabled,
+        send_reminders_before_hours: meeting.send_reminders_before_hours,
+        reminder_message_custom_content: meeting.reminder_message_custom_content,
         registration_type: :on_this_platform,
         registration_url: meeting.registration_url,
         type_of_meeting: meeting.type_of_meeting
@@ -77,6 +80,7 @@ module Decidim::Meetings
         expect(new_meeting.category).to eq(old_meeting.category)
         expect(new_meeting.component).to eq(old_meeting.component)
         expect(new_meeting.component).not_to eq(be_published)
+        expect(new_meeting.reminder_message_custom_content).to eq(old_meeting.reminder_message_custom_content)
 
         new_meeting.services.each_with_index do |service, index|
           expect(service.title).to eq(services[index]["title"])
diff --git a/decidim-meetings/spec/commands/admin/create_meeting_spec.rb b/decidim-meetings/spec/commands/admin/create_meeting_spec.rb
index f1e97a2febc97..b0f1da8e2dc11 100644
--- a/decidim-meetings/spec/commands/admin/create_meeting_spec.rb
+++ b/decidim-meetings/spec/commands/admin/create_meeting_spec.rb
@@ -25,6 +25,9 @@ module Decidim::Meetings
     let(:registration_url) { "http://decidim.org" }
     let(:registration_type) { "on_this_platform" }
     let(:registrations_enabled) { true }
+    let(:reminder_enabled) { true }
+    let(:send_reminders_before_hours) { 50 }
+    let(:reminder_message_custom_content) { { en: "Custom reminder message" } }
     let(:iframe_embed_type) { "embed_in_meeting_page" }
     let(:iframe_access_level) { "all" }
     let(:services) do
@@ -72,6 +75,9 @@ module Decidim::Meetings
         comments_enabled: true,
         comments_start_time: nil,
         comments_end_time: nil,
+        reminder_enabled: reminder_enabled,
+        send_reminders_before_hours: send_reminders_before_hours,
+        reminder_message_custom_content: reminder_message_custom_content,
         iframe_access_level: iframe_access_level
       )
     end
@@ -123,6 +129,28 @@ module Decidim::Meetings
         expect(last_meeting.longitude).to eq(longitude)
       end
 
+      it "sets the reminder message" do
+        subject.call
+        expect(meeting.reminder_message_custom_content).to eq(reminder_message_custom_content)
+      end
+
+      it "sets the send_reminders_before_hours" do
+        subject.call
+        expect(meeting.send_reminders_before_hours).to eq(send_reminders_before_hours)
+        expect(meeting.reminder_message_custom_content).to eq(reminder_message_custom_content)
+      end
+
+      context "when reminder is not enabled" do
+        let(:reminder_enabled) { false }
+
+        it "sends reminders before hours is nil" do
+          subject.call
+
+          expect(meeting.send_reminders_before_hours).to be_nil
+          expect(meeting.reminder_message_custom_content).to be_empty
+        end
+      end
+
       it "sets the services" do
         subject.call
 
diff --git a/decidim-meetings/spec/commands/admin/update_meeting_spec.rb b/decidim-meetings/spec/commands/admin/update_meeting_spec.rb
index e0c6077a96e0f..479af13847429 100644
--- a/decidim-meetings/spec/commands/admin/update_meeting_spec.rb
+++ b/decidim-meetings/spec/commands/admin/update_meeting_spec.rb
@@ -29,6 +29,9 @@ module Decidim::Meetings
     let(:registration_url) { "http://decidim.org" }
     let(:registration_type) { "on_this_platform" }
     let(:registrations_enabled) { true }
+    let(:reminder_enabled) { true }
+    let(:send_reminders_before_hours) { 50 }
+    let(:reminder_message_custom_content) { { "en" => "Custom reminder message!" } }
     let(:iframe_embed_type) { "none" }
     let(:iframe_access_level) { nil }
 
@@ -60,6 +63,9 @@ module Decidim::Meetings
         comments_enabled: true,
         comments_start_time: nil,
         comments_end_time: nil,
+        reminder_enabled: reminder_enabled,
+        send_reminders_before_hours: send_reminders_before_hours,
+        reminder_message_custom_content: reminder_message_custom_content,
         iframe_access_level: iframe_access_level
       )
     end
@@ -104,6 +110,13 @@ module Decidim::Meetings
         expect(meeting.registrations_enabled).to eq registrations_enabled
       end
 
+      it "sets the reminder settings" do
+        subject.call
+        expect(meeting.reminder_enabled).to eq reminder_enabled
+        expect(meeting.send_reminders_before_hours).to eq send_reminders_before_hours
+        expect(meeting.reminder_message_custom_content).to eq reminder_message_custom_content
+      end
+
       it "sets the services" do
         subject.call
         meeting.services.each_with_index do |service, index|
@@ -163,6 +176,9 @@ module Decidim::Meetings
             comments_enabled: true,
             comments_start_time: nil,
             comments_end_time: nil,
+            reminder_enabled: reminder_enabled,
+            send_reminders_before_hours: send_reminders_before_hours,
+            reminder_message_custom_content: reminder_message_custom_content,
             iframe_access_level: iframe_access_level
           )
         end
diff --git a/decidim-meetings/spec/commands/create_meeting_spec.rb b/decidim-meetings/spec/commands/create_meeting_spec.rb
index 66d99615bb0a8..1fa986b5d0252 100644
--- a/decidim-meetings/spec/commands/create_meeting_spec.rb
+++ b/decidim-meetings/spec/commands/create_meeting_spec.rb
@@ -27,6 +27,8 @@ module Decidim::Meetings
     let(:registrations_enabled) { true }
     let(:available_slots) { 0 }
     let(:registration_terms) { Faker::Lorem.sentence(word_count: 3) }
+    let(:reminder_enabled) { true }
+    let(:send_reminders_before_hours) { 50 }
     let(:form) do
       double(
         invalid?: invalid,
@@ -53,7 +55,10 @@ module Decidim::Meetings
         clean_type_of_meeting: type_of_meeting,
         online_meeting_url: online_meeting_url,
         iframe_embed_type: iframe_embed_type,
-        iframe_access_level: iframe_access_level
+        iframe_access_level: iframe_access_level,
+        reminder_enabled: reminder_enabled,
+        send_reminders_before_hours: send_reminders_before_hours,
+        reminder_message_custom_content: "Custom reminder message!"
       )
     end
 
@@ -91,6 +96,23 @@ module Decidim::Meetings
         expect(meeting.category).to eq category
       end
 
+      it "sets the reminder settings" do
+        subject.call
+        expect(meeting.reminder_enabled).to eq reminder_enabled
+        expect(meeting.send_reminders_before_hours).to eq send_reminders_before_hours
+        expect(meeting.reminder_message_custom_content).to include("en" => "Custom reminder message!")
+      end
+
+      context "when reminder is not enabled" do
+        let(:reminder_enabled) { false }
+
+        it "sends reminders before hours is nil" do
+          subject.call
+          expect(meeting.send_reminders_before_hours).to be_nil
+          expect(meeting.reminder_message_custom_content).to be_empty
+        end
+      end
+
       it "sets the registration_terms" do
         subject.call
         expect(meeting.registration_terms).to eq("en" => registration_terms)
diff --git a/decidim-meetings/spec/commands/update_meeting_spec.rb b/decidim-meetings/spec/commands/update_meeting_spec.rb
index 1ed153b6af23e..69ce2ab2b7193 100644
--- a/decidim-meetings/spec/commands/update_meeting_spec.rb
+++ b/decidim-meetings/spec/commands/update_meeting_spec.rb
@@ -26,6 +26,8 @@ module Decidim::Meetings
     let(:registration_url) { "http://decidim.org" }
     let(:iframe_embed_type) { "none" }
     let(:iframe_access_level) { nil }
+    let(:reminder_enabled) { true }
+    let(:send_reminders_before_hours) { 50 }
     let(:form) do
       double(
         invalid?: invalid,
@@ -51,7 +53,10 @@ module Decidim::Meetings
         clean_type_of_meeting: type_of_meeting,
         online_meeting_url: online_meeting_url,
         iframe_embed_type: iframe_embed_type,
-        iframe_access_level: iframe_access_level
+        iframe_access_level: iframe_access_level,
+        reminder_enabled: reminder_enabled,
+        send_reminders_before_hours: send_reminders_before_hours,
+        reminder_message_custom_content: "Custom reminder message!"
       )
     end
 
@@ -87,6 +92,13 @@ module Decidim::Meetings
         expect(meeting.longitude).to eq(longitude)
       end
 
+      it "sets the reminder settings" do
+        subject.call
+        expect(meeting.reminder_enabled).to eq reminder_enabled
+        expect(meeting.send_reminders_before_hours).to eq send_reminders_before_hours
+        expect(meeting.reminder_message_custom_content).to include("en" => "Custom reminder message!")
+      end
+
       context "when the author is a user_group" do
         let(:user_group) { create :user_group, :verified, users: [current_user], organization: organization }
         let(:user_group_id) { user_group.id }
@@ -150,7 +162,10 @@ module Decidim::Meetings
             clean_type_of_meeting: type_of_meeting,
             online_meeting_url: online_meeting_url,
             iframe_embed_type: iframe_embed_type,
-            iframe_access_level: iframe_access_level
+            iframe_access_level: iframe_access_level,
+            reminder_enabled: reminder_enabled,
+            send_reminders_before_hours: send_reminders_before_hours,
+            reminder_message_custom_content: "Custom reminder message!"
           )
         end
 
diff --git a/decidim-meetings/spec/forms/admin/meeting_form_spec.rb b/decidim-meetings/spec/forms/admin/meeting_form_spec.rb
index 84327fd00b29e..9d5970d7817f8 100644
--- a/decidim-meetings/spec/forms/admin/meeting_form_spec.rb
+++ b/decidim-meetings/spec/forms/admin/meeting_form_spec.rb
@@ -55,6 +55,9 @@ module Decidim::Meetings
     let(:registration_type) { "on_this_platform" }
     let(:registrations_enabled) { true }
     let(:available_slots) { 0 }
+    let(:reminder_enabled) { true }
+    let(:send_reminders_before_hours) { 48 }
+    let(:reminder_message_custom_content) { { en: "Custom reminder message" } }
     let(:iframe_embed_type) { "none" }
     let(:attributes) do
       {
@@ -77,7 +80,10 @@ module Decidim::Meetings
         type_of_meeting: type_of_meeting,
         online_meeting_url: online_meeting_url,
         iframe_embed_type: iframe_embed_type,
-        registrations_enabled: registrations_enabled
+        registrations_enabled: registrations_enabled,
+        reminder_enabled: reminder_enabled,
+        send_reminders_before_hours: send_reminders_before_hours,
+        reminder_message_custom_content: reminder_message_custom_content
       }
     end
 
@@ -150,6 +156,38 @@ module Decidim::Meetings
       it { is_expected.not_to be_valid }
     end
 
+    describe "when reminder_enabled is false" do
+      let(:reminder_enabled) { false }
+
+      it { is_expected.to be_valid }
+    end
+
+    describe "when reminder_enabled is true" do
+      context "and send_reminders_before_hours is missing" do
+        let(:send_reminders_before_hours) { nil }
+
+        it { is_expected.not_to be_valid }
+      end
+
+      context "and send_reminders_before_hours is present" do
+        let(:send_reminders_before_hours) { 50 }
+
+        it { is_expected.to be_valid }
+      end
+
+      context "and send_reminders_before_hours is not valid" do
+        let(:send_reminders_before_hours) { -1 }
+
+        it { is_expected.not_to be_valid }
+      end
+
+      context "and reminder_message_custom_content is missing" do
+        let(:reminder_message_custom_content) { nil }
+
+        it { is_expected.to be_valid }
+      end
+    end
+
     it "validates address and store its coordinates" do
       expect(subject).to be_valid
       expect(subject.latitude).to eq(latitude)
diff --git a/decidim-meetings/spec/forms/meeting_form_spec.rb b/decidim-meetings/spec/forms/meeting_form_spec.rb
index a639a38a60b2b..00483d734f4ca 100644
--- a/decidim-meetings/spec/forms/meeting_form_spec.rb
+++ b/decidim-meetings/spec/forms/meeting_form_spec.rb
@@ -38,6 +38,9 @@ module Decidim::Meetings
     let(:available_slots) { 0 }
     let(:registration_url) { "http://decidim.org" }
     let(:online_meeting_url) { "http://decidim.org" }
+    let(:reminder_enabled) { true }
+    let(:send_reminders_before_hours) { 48 }
+    let(:reminder_message_custom_content) { {} }
     let(:iframe_embed_type) { "none" }
     let(:registration_terms) { Faker::Lorem.sentence(word_count: 3) }
     let(:attributes) do
@@ -61,6 +64,9 @@ module Decidim::Meetings
         registration_terms: registration_terms,
         registrations_enabled: true,
         registration_url: registration_url,
+        reminder_enabled: reminder_enabled,
+        send_reminders_before_hours: send_reminders_before_hours,
+        reminder_message_custom_content: reminder_message_custom_content,
         iframe_embed_type: iframe_embed_type
       }
     end
@@ -134,6 +140,38 @@ module Decidim::Meetings
       it { is_expected.not_to be_valid }
     end
 
+    describe "when reminder_enabled is false" do
+      let(:reminder_enabled) { false }
+
+      it { is_expected.to be_valid }
+    end
+
+    describe "when reminder_enabled is true" do
+      context "and send_reminders_before_hours is missing" do
+        let(:send_reminders_before_hours) { nil }
+
+        it { is_expected.not_to be_valid }
+      end
+
+      context "and send_reminders_before_hours is present" do
+        let(:send_reminders_before_hours) { 50 }
+
+        it { is_expected.to be_valid }
+      end
+
+      context "and send_reminders_before_hours is not valid" do
+        let(:send_reminders_before_hours) { -1 }
+
+        it { is_expected.not_to be_valid }
+      end
+
+      context "and reminder_message_custom_content is missing" do
+        let(:reminder_message_custom_content) { nil }
+
+        it { is_expected.to be_valid }
+      end
+    end
+
     it "validates address and store its coordinates" do
       expect(subject).to be_valid
       expect(subject.latitude).to eq(latitude)

From 0f5de569fe4c457a551f2d26017d15afae9bc7df Mon Sep 17 00:00:00 2001
From: Anna Topalidi <t.opalidisanna@gmail.com>
Date: Tue, 18 Feb 2025 11:04:55 +0100
Subject: [PATCH 2/3] fix test

---
 decidim-meetings/spec/commands/admin/create_meeting_spec.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/decidim-meetings/spec/commands/admin/create_meeting_spec.rb b/decidim-meetings/spec/commands/admin/create_meeting_spec.rb
index b0f1da8e2dc11..9a203a9fca71f 100644
--- a/decidim-meetings/spec/commands/admin/create_meeting_spec.rb
+++ b/decidim-meetings/spec/commands/admin/create_meeting_spec.rb
@@ -27,7 +27,7 @@ module Decidim::Meetings
     let(:registrations_enabled) { true }
     let(:reminder_enabled) { true }
     let(:send_reminders_before_hours) { 50 }
-    let(:reminder_message_custom_content) { { en: "Custom reminder message" } }
+    let(:reminder_message_custom_content) { { "en" => "Custom reminder message" } }
     let(:iframe_embed_type) { "embed_in_meeting_page" }
     let(:iframe_access_level) { "all" }
     let(:services) do

From 51fb32b7e4cbff2d7eec1b412cfa8e9ce4515e8e Mon Sep 17 00:00:00 2001
From: Anna Topalidi <t.opalidisanna@gmail.com>
Date: Fri, 28 Feb 2025 14:15:33 +0100
Subject: [PATCH 3/3] change validation if send_reminders_before_hours is null

---
 .../decidim/meetings/admin/update_meeting.rb     |  2 +-
 .../forms/decidim/meetings/admin/meeting_form.rb |  7 +++----
 .../app/forms/decidim/meetings/meeting_form.rb   |  8 ++++----
 .../decidim/meetings/meeting_presenter.rb        |  7 ++-----
 .../meetings/admin/meetings/_form.html.erb       |  3 ++-
 .../decidim/meetings/meetings/_form.html.erb     |  3 ++-
 decidim-meetings/config/locales/en.yml           |  2 +-
 .../spec/forms/admin/meeting_form_spec.rb        | 16 +++++++++++++++-
 decidim-meetings/spec/forms/meeting_form_spec.rb | 16 +++++++++++++++-
 9 files changed, 45 insertions(+), 19 deletions(-)

diff --git a/decidim-meetings/app/commands/decidim/meetings/admin/update_meeting.rb b/decidim-meetings/app/commands/decidim/meetings/admin/update_meeting.rb
index ea8607f2d3a9e..db4e1684521b5 100644
--- a/decidim-meetings/app/commands/decidim/meetings/admin/update_meeting.rb
+++ b/decidim-meetings/app/commands/decidim/meetings/admin/update_meeting.rb
@@ -105,7 +105,7 @@ def schedule_upcoming_meeting_notification
           checksum = Decidim::Meetings::UpcomingMeetingNotificationJob.generate_checksum(meeting)
 
           Decidim::Meetings::UpcomingMeetingNotificationJob
-            .set(wait_until: meeting.start_time - Decidim::Meetings.upcoming_meeting_notification)
+            .set(wait_until: meeting.start_time - meeting.send_reminders_before_hours.hours)
             .perform_later(meeting.id, checksum)
         end
       end
diff --git a/decidim-meetings/app/forms/decidim/meetings/admin/meeting_form.rb b/decidim-meetings/app/forms/decidim/meetings/admin/meeting_form.rb
index 1b95aadc5a998..cf005d1c4599d 100644
--- a/decidim-meetings/app/forms/decidim/meetings/admin/meeting_form.rb
+++ b/decidim-meetings/app/forms/decidim/meetings/admin/meeting_form.rb
@@ -44,9 +44,7 @@ class MeetingForm < ::Decidim::Meetings::BaseMeetingForm
         validates :scope, presence: true, if: ->(form) { form.decidim_scope_id.present? }
         validates :decidim_scope_id, scope_belongs_to_component: true, if: ->(form) { form.decidim_scope_id.present? }
         validates :clean_type_of_meeting, presence: true
-        validates :send_reminders_before_hours,
-                  presence: true, if: :reminder_enabled,
-                  numericality: { only_integer: true, greater_than: 0, if: :reminder_enabled }
+        validates :send_reminders_before_hours, numericality: { only_integer: true, greater_than_or_equal_to: 0, if: :reminder_enabled }
         validates(
           :iframe_access_level,
           inclusion: { in: Decidim::Meetings::Meeting.iframe_access_levels },
@@ -78,7 +76,8 @@ def number_of_services
         def send_reminders_before_hours
           return nil unless reminder_enabled
 
-          super
+          value = super.presence
+          value.blank? || value.to_i.zero? ? Decidim::Meetings.upcoming_meeting_notification.in_hours.to_i : value.to_i
         end
 
         def reminder_message_custom_content
diff --git a/decidim-meetings/app/forms/decidim/meetings/meeting_form.rb b/decidim-meetings/app/forms/decidim/meetings/meeting_form.rb
index f28f6816d04dd..69403b06c8b98 100644
--- a/decidim-meetings/app/forms/decidim/meetings/meeting_form.rb
+++ b/decidim-meetings/app/forms/decidim/meetings/meeting_form.rb
@@ -37,9 +37,7 @@ class MeetingForm < ::Decidim::Meetings::BaseMeetingForm
       validates :scope, presence: true, if: ->(form) { form.decidim_scope_id.present? }
       validates :decidim_scope_id, scope_belongs_to_component: true, if: ->(form) { form.decidim_scope_id.present? }
       validates :clean_type_of_meeting, presence: true
-      validates :send_reminders_before_hours,
-                presence: true, if: :reminder_enabled,
-                numericality: { only_integer: true, greater_than: 0, if: :reminder_enabled }
+      validates :send_reminders_before_hours, numericality: { only_integer: true, greater_than_or_equal_to: 0, if: :reminder_enabled }
       validates(
         :iframe_access_level,
         inclusion: { in: Decidim::Meetings::Meeting.iframe_access_levels },
@@ -57,6 +55,7 @@ def map_model(model)
         self.location = presenter.location(all_locales: false)
         self.location_hints = presenter.location_hints(all_locales: false)
         self.registration_terms = presenter.registration_terms(all_locales: false)
+        self.reminder_message_custom_content = presenter.reminder_message_custom_content(all_locales: false)
         self.type_of_meeting = model.type_of_meeting
       end
 
@@ -65,7 +64,8 @@ def map_model(model)
       def send_reminders_before_hours
         return nil unless reminder_enabled
 
-        super
+        value = super.presence
+        value.blank? || value.to_i.zero? ? Decidim::Meetings.upcoming_meeting_notification.in_hours.to_i : value.to_i
       end
 
       def reminder_message_custom_content
diff --git a/decidim-meetings/app/presenters/decidim/meetings/meeting_presenter.rb b/decidim-meetings/app/presenters/decidim/meetings/meeting_presenter.rb
index bb874b75ef946..c434763697e71 100644
--- a/decidim-meetings/app/presenters/decidim/meetings/meeting_presenter.rb
+++ b/decidim-meetings/app/presenters/decidim/meetings/meeting_presenter.rb
@@ -76,13 +76,10 @@ def registration_email_custom_content(links: false, all_locales: false)
         end
       end
 
-      def reminder_message_custom_content(links: false, all_locales: false)
+      def reminder_message_custom_content(links: false, extras: true, strip_tags: false, all_locales: false)
         return unless meeting
 
-        handle_locales(meeting.reminder_message_custom_content, all_locales) do |content|
-          renderer = Decidim::ContentRenderers::HashtagRenderer.new(content)
-          renderer.render(links: links).html_safe
-        end
+        content_handle_locale(meeting.reminder_message_custom_content, all_locales, extras, links, strip_tags)
       end
 
       # start time and end time in rfc3339 format removing '-' and ':' symbols
diff --git a/decidim-meetings/app/views/decidim/meetings/admin/meetings/_form.html.erb b/decidim-meetings/app/views/decidim/meetings/admin/meetings/_form.html.erb
index a4a430fdd960f..87630d4cd11ac 100644
--- a/decidim-meetings/app/views/decidim/meetings/admin/meetings/_form.html.erb
+++ b/decidim-meetings/app/views/decidim/meetings/admin/meetings/_form.html.erb
@@ -106,7 +106,8 @@
 
     <div id="customize_reminder_times" data-toggler=".hide" class="row column <%= @form.reminder_enabled ? nil : "hide" %>">
       <div class="my-4">
-        <%= form.number_field :send_reminders_before_hours, label: t("send_reminder", scope: "decidim.meetings.admin.meetings.form"), help_text: t("reminder_help_text", scope: "decidim.meetings.admin.meetings.form") %>
+        <%= form.number_field :send_reminders_before_hours, label: t("send_reminder", scope: "decidim.meetings.admin.meetings.form") %>
+        <p class="help-text"><%= t("reminder_help_text", scope: "decidim.meetings.admin.meetings.form", default_value: Decidim::Meetings.upcoming_meeting_notification.in_hours.to_i) %></p>
       </div>
 
       <%= form.translated :editor, :reminder_message_custom_content, label: t("reminder_message", scope: "decidim.meetings.admin.meetings.form"), hashtaggable: true, help_text: t("reminder_message_help_text", scope: "decidim.meetings.admin.meetings.form") %>
diff --git a/decidim-meetings/app/views/decidim/meetings/meetings/_form.html.erb b/decidim-meetings/app/views/decidim/meetings/meetings/_form.html.erb
index 3ebea79e947d4..8405beb7b47a2 100644
--- a/decidim-meetings/app/views/decidim/meetings/meetings/_form.html.erb
+++ b/decidim-meetings/app/views/decidim/meetings/meetings/_form.html.erb
@@ -95,7 +95,8 @@
 
 <div id="customize_reminder_times" data-toggler=".hide" class="row column <%= @form.reminder_enabled ? nil : "hide" %>">
   <div class="my-4">
-    <%= form.number_field :send_reminders_before_hours, label: t("send_reminder", scope: "decidim.meetings.admin.meetings.form"), help_text: t("reminder_help_text", scope: "decidim.meetings.admin.meetings.form") %>
+    <%= form.number_field :send_reminders_before_hours, label: t("send_reminder", scope: "decidim.meetings.admin.meetings.form") %>
+    <p class="help-text"><%= t("reminder_help_text", scope: "decidim.meetings.admin.meetings.form", default_value: Decidim::Meetings.upcoming_meeting_notification.in_hours.to_i) %></p>
   </div>
   <%= text_editor_for(form, :reminder_message_custom_content, hashtaggable: true, label: t("reminder_message", scope: "decidim.meetings.admin.meetings.form"), help_text: t("reminder_message_help_text", scope: "decidim.meetings.admin.meetings.form") ) %>
 </div>
diff --git a/decidim-meetings/config/locales/en.yml b/decidim-meetings/config/locales/en.yml
index a82ff7f3c963d..67d844f945819 100644
--- a/decidim-meetings/config/locales/en.yml
+++ b/decidim-meetings/config/locales/en.yml
@@ -319,7 +319,7 @@ en:
             online_meeting_url_help: 'Link: allow participants to connect directly to your meeting'
             registration_url_help: 'Link: allow participants to go on the external service you are using for registrations'
             reminder_enabled: Reminder enabled
-            reminder_help_text: Participants will receive an email the number of hours specified in advance of themeeting. Leave it empty or zero if no reminder is necessary.
+            reminder_help_text: Participants will receive an email the number of hours specified in advance of themeeting. If left empty or zero, the reminder will be sent at the default configured value of %{default_value} hours.
             reminder_message: Reminder message
             reminder_message_help_text: Customize the message if necessary. This will be ignored if no reminder is scheduled.
             select_a_meeting_type: Please select a meeting type
diff --git a/decidim-meetings/spec/forms/admin/meeting_form_spec.rb b/decidim-meetings/spec/forms/admin/meeting_form_spec.rb
index 9d5970d7817f8..a6d3c0e30992a 100644
--- a/decidim-meetings/spec/forms/admin/meeting_form_spec.rb
+++ b/decidim-meetings/spec/forms/admin/meeting_form_spec.rb
@@ -166,7 +166,21 @@ module Decidim::Meetings
       context "and send_reminders_before_hours is missing" do
         let(:send_reminders_before_hours) { nil }
 
-        it { is_expected.not_to be_valid }
+        it { is_expected.to be_valid }
+
+        it "returns the default value" do
+          expect(form.send_reminders_before_hours).to eq(Decidim::Meetings.upcoming_meeting_notification.in_hours.to_i)
+        end
+      end
+
+      context "and send_reminders_before_hours is zero" do
+        let(:send_reminders_before_hours) { 0 }
+
+        it { is_expected.to be_valid }
+
+        it "returns the default value" do
+          expect(form.send_reminders_before_hours).to eq(Decidim::Meetings.upcoming_meeting_notification.in_hours.to_i)
+        end
       end
 
       context "and send_reminders_before_hours is present" do
diff --git a/decidim-meetings/spec/forms/meeting_form_spec.rb b/decidim-meetings/spec/forms/meeting_form_spec.rb
index 00483d734f4ca..8f7c2e5f2937c 100644
--- a/decidim-meetings/spec/forms/meeting_form_spec.rb
+++ b/decidim-meetings/spec/forms/meeting_form_spec.rb
@@ -150,7 +150,21 @@ module Decidim::Meetings
       context "and send_reminders_before_hours is missing" do
         let(:send_reminders_before_hours) { nil }
 
-        it { is_expected.not_to be_valid }
+        it { is_expected.to be_valid }
+
+        it "returns the default value" do
+          expect(form.send_reminders_before_hours).to eq(Decidim::Meetings.upcoming_meeting_notification.in_hours.to_i)
+        end
+      end
+
+      context "and send_reminders_before_hours is zero" do
+        let(:send_reminders_before_hours) { 0 }
+
+        it { is_expected.to be_valid }
+
+        it "returns the default value" do
+          expect(form.send_reminders_before_hours).to eq Decidim::Meetings.upcoming_meeting_notification.in_hours.to_i
+        end
       end
 
       context "and send_reminders_before_hours is present" do