[16.0][ADD] crm_proposal_due_date: track proposal submission date, with activity

crm_proposal_due_date/README.rst

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+=====================
+CRM Proposal Due Date
+=====================
+
+.. 
+   !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+   !! This file is generated by oca-gen-addon-readme !!
+   !! changes will be overwritten.                   !!
+   !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+   !! source digest: sha256:e4f8d992995dbb6fc626f546a69e38a83fbfc0c108851156018579a7aec8a2d6
+   !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+.. |badge1| image:: https://img.shields.io/badge/maturity-Alpha-red.png
+    :target: https://odoo-community.org/page/development-status
+    :alt: Alpha
+.. |badge2| image:: https://img.shields.io/badge/licence-LGPL--3-blue.png
+    :target: http://www.gnu.org/licenses/lgpl-3.0-standalone.html
+    :alt: License: LGPL-3
+.. |badge3| image:: https://img.shields.io/badge/github-OCA%2Fcrm-lightgray.png?logo=github
+    :target: https://github.com/OCA/crm/tree/16.0/crm_proposal_due_date
+    :alt: OCA/crm
+.. |badge4| image:: https://img.shields.io/badge/weblate-Translate%20me-F47D42.png
+    :target: https://translation.odoo-community.org/projects/crm-16-0/crm-16-0-crm_proposal_due_date
+    :alt: Translate me on Weblate
+.. |badge5| image:: https://img.shields.io/badge/runboat-Try%20me-875A7B.png
+    :target: https://runboat.odoo-community.org/builds?repo=OCA/crm&target_branch=16.0
+    :alt: Try me on Runboat
+
+|badge1| |badge2| |badge3| |badge4| |badge5|
+
+This module extends the CRM *Opportunity* form with an **Expected
+Proposal Submission Date** field (``proposal_due_date``).
+
+Whenever this date is set or changed on an opportunity, an activity of
+type *"Remettre la proposition"* is automatically scheduled with the
+same deadline, giving the responsible salesperson a visible reminder in
+their activity feed. If the date is cleared the corresponding activity
+is automatically removed.
+
+.. IMPORTANT::
+   This is an alpha version, the data model and design can change at any time without warning.
+   Only for development or testing purpose, do not use in production.
+   `More details on development status <https://odoo-community.org/page/development-status>`_
+
+**Table of contents**
+
+.. contents::
+   :local:
+
+Usage
+=====
+
+1. Open an opportunity in the CRM pipeline.
+2. Fill in the **Expected Proposal Submission Date** field.
+3. Save the record — a *"Submit Proposal"* activity is automatically
+   created in the chatter. Its deadline can be adjusted independently.
+4. Clearing the date removes the activity.
+
+Bug Tracker
+===========
+
+Bugs are tracked on `GitHub Issues <https://github.com/OCA/crm/issues>`_.
+In case of trouble, please check there if your issue has already been reported.
+If you spotted it first, help us to smash it by providing a detailed and welcomed
+`feedback <https://github.com/OCA/crm/issues/new?body=module:%20crm_proposal_due_date%0Aversion:%2016.0%0A%0A**Steps%20to%20reproduce**%0A-%20...%0A%0A**Current%20behavior**%0A%0A**Expected%20behavior**>`_.
+
+Do not contact contributors directly about support or help with technical issues.
+
+Credits
+=======
+
+Authors
+-------
+
+* Ctrl-a
+
+Contributors
+------------
+
+-  Simon Maillard simon@ogesta.fr
+
+Maintainers
+-----------
+
+This module is maintained by the OCA.
+
+.. image:: https://odoo-community.org/logo.png
+   :alt: Odoo Community Association
+   :target: https://odoo-community.org
+
+OCA, or the Odoo Community Association, is a nonprofit organization whose
+mission is to support the collaborative development of Odoo features and
+promote its widespread use.
+
+This module is part of the `OCA/crm <https://github.com/OCA/crm/tree/16.0/crm_proposal_due_date>`_ project on GitHub.
+
+You are welcome to contribute. To learn how please visit https://odoo-community.org/page/Contribute.

crm_proposal_due_date/__init__.py

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+# Copyright 2026 Ctrl-a
+# License LGPL-3.0 or later (https://www.gnu.org/licenses/lgpl-3.0)
+
+from . import models

crm_proposal_due_date/__manifest__.py

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+# Copyright 2026 Ctrl-a
+# License LGPL-3.0 or later (https://www.gnu.org/licenses/lgpl-3.0)
+
+{
+    "name": "CRM Proposal Due Date",
+    "summary": "Track proposal submission date and auto-schedule a dedicated activity",
+    "version": "16.0.1.0.0",
+    "development_status": "Alpha",
+    "category": "Sales/CRM",
+    "website": "https://github.com/OCA/crm",
+    "author": "Ctrl-a, Odoo Community Association (OCA)",
+    "license": "LGPL-3",
+    "application": False,
+    "installable": True,
+    "depends": [
+        "crm",
+    ],
+    "data": [
+        "data/mail_activity_type.xml",
+        "views/crm_lead_view.xml",
+    ],
+}

crm_proposal_due_date/data/mail_activity_type.xml

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+<?xml version="1.0" encoding="utf-8" ?>
+<!-- Copyright 2026 Ctrl-a
+     License LGPL-3.0 or later (https://www.gnu.org/licenses/lgpl-3.0) -->
+<odoo noupdate="1">
+    <record id="mail_activity_type_proposal" model="mail.activity.type">
+        <field name="name">Submit Proposal</field>
+        <field name="icon">fa-file-text-o</field>
+        <field name="res_model">crm.lead</field>
+    </record>
+</odoo>

crm_proposal_due_date/i18n/crm_proposal_due_date.pot

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+# Translation of Odoo Server.
+# This file contains the translation of the following modules:
+# 	* crm_proposal_due_date
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Odoo Server 16.0\n"
+"Report-Msgid-Bugs-To: \n"
+"Last-Translator: \n"
+"Language-Team: \n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: \n"
+"Plural-Forms: \n"
+
+#. module: crm_proposal_due_date
+#: model:ir.model.fields,field_description:crm_proposal_due_date.field_crm_lead__proposal_due_date
+msgid "Expected Proposal Submission Date"
+msgstr ""
+
+#. module: crm_proposal_due_date
+#: model:ir.model,name:crm_proposal_due_date.model_crm_lead
+msgid "Lead/Opportunity"
+msgstr ""
+
+#. module: crm_proposal_due_date
+#. odoo-python
+#: code:addons/crm_proposal_due_date/models/crm_lead.py:0
+#: model:mail.activity.type,name:crm_proposal_due_date.mail_activity_type_proposal
+#, python-format
+msgid "Submit Proposal"
+msgstr ""

crm_proposal_due_date/i18n/fr.po

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+# Translation of Odoo Server.
+# This file contains the translation of the following modules:
+# 	* crm_proposal_due_date
+#
+# Translators:
+# Simon Maillard <simon@ogesta.fr>, 2026
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Odoo Server 16.0\n"
+"Report-Msgid-Bugs-To: \n"
+"Last-Translator: Simon Maillard <simon@ogesta.fr>\n"
+"Language-Team: French <fr@li.org>\n"
+"Language: fr\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: \n"
+"Plural-Forms: nplurals=2; plural=(n > 1);\n"
+
+#. module: crm_proposal_due_date
+#: model:ir.model.fields,field_description:crm_proposal_due_date.field_crm_lead__proposal_due_date
+msgid "Expected Proposal Submission Date"
+msgstr "Date prévue de remise de la proposition"
+
+#. module: crm_proposal_due_date
+#: model:ir.model,name:crm_proposal_due_date.model_crm_lead
+msgid "Lead/Opportunity"
+msgstr "Piste/Opportunité"
+
+#. module: crm_proposal_due_date
+#. odoo-python
+#: code:addons/crm_proposal_due_date/models/crm_lead.py:0
+#: model:mail.activity.type,name:crm_proposal_due_date.mail_activity_type_proposal
+#, python-format
+msgid "Submit Proposal"
+msgstr "Remettre la proposition"

crm_proposal_due_date/models/__init__.py

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+# Copyright 2026 Ctrl-a
+# License LGPL-3.0 or later (https://www.gnu.org/licenses/lgpl-3.0)
+
+from . import crm_lead

crm_proposal_due_date/models/crm_lead.py

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+# Copyright 2026 Ctrl-a
+# License LGPL-3.0 or later (https://www.gnu.org/licenses/lgpl-3.0)
+
+from odoo import _, api, fields, models
+
+_ACTIVITY_XMLID = "crm_proposal_due_date.mail_activity_type_proposal"
+
+
+class CrmLead(models.Model):
+    _inherit = "crm.lead"
+
+    proposal_due_date = fields.Date(
+        string="Expected Proposal Submission Date",
+        tracking=True,
+        index=True,
+    )
+
+    # ------------------------------------------------------------------
+    # CRUD
+    # ------------------------------------------------------------------
+
+    @api.model_create_multi
+    def create(self, vals_list):
+        records = super().create(vals_list)
+        for record in records:
+            if record.proposal_due_date:
+                record._sync_proposal_activity()
+        return records
+
+    def write(self, vals):
+        if "proposal_due_date" not in vals:
+            return super().write(vals)
+        # Track which records already had a date before writing
+        already_set_ids = set(self.filtered("proposal_due_date").ids)
+        res = super().write(vals)
+        for record in self:
+            record._sync_proposal_activity(was_already_set=record.id in already_set_ids)
+        return res
+
+    # ------------------------------------------------------------------
+    # Helpers
+    # ------------------------------------------------------------------
+
+    def _sync_proposal_activity(self, was_already_set=False):
+        """Create or remove the 'Submit Proposal' activity.
+
+        The activity deadline is managed independently by the user and is
+        never overwritten when ``proposal_due_date`` changes.
+
+        - First time ``proposal_due_date`` is set: schedule a new activity.
+        - ``proposal_due_date`` changed (was already set): leave the existing
+          activity untouched.
+        - ``proposal_due_date`` cleared: remove any automated activity of this
+          type.
+        """
+        self.ensure_one()
+        activity_type = self.env.ref(_ACTIVITY_XMLID, raise_if_not_found=False)
+        if not activity_type:
+            return
+
+        existing = self.activity_ids.filtered(
+            lambda a: a.activity_type_id == activity_type and a.automated
+        )
+
+        if not self.proposal_due_date:
+            existing.unlink()
+            return
+
+        if not existing and not was_already_set:
+            # Only schedule when the date is set for the first time
+            self.activity_schedule(
+                act_type_xmlid=_ACTIVITY_XMLID,
+                date_deadline=self.proposal_due_date,
+                summary=_("Submit Proposal"),
+            )

crm_proposal_due_date/readme/CONTRIBUTORS.md

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+-   Simon Maillard <simon@ogesta.fr>

crm_proposal_due_date/readme/DESCRIPTION.md

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+This module extends the CRM *Opportunity* form with an **Expected Proposal
+Submission Date** field (``proposal_due_date``).
+
+Whenever this date is set or changed on an opportunity, an activity of type
+*"Remettre la proposition"* is automatically scheduled with the same deadline,
+giving the responsible salesperson a visible reminder in their activity feed.
+If the date is cleared the corresponding activity is automatically removed.

crm_proposal_due_date/readme/USAGE.md

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+1. Open an opportunity in the CRM pipeline.
+2. Fill in the **Expected Proposal Submission Date** field.
+3. Save the record — a *"Submit Proposal"* activity is automatically
+   created in the chatter. Its deadline can be adjusted independently.
+4. Clearing the date removes the activity.