OCA · SilvioC2C · Jan 14, 2026 · Jan 15, 2026
diff --git a/crm_lead_company_currency_fix/README.rst b/crm_lead_company_currency_fix/README.rst
@@ -0,0 +1,135 @@
+.. image:: https://odoo-community.org/readme-banner-image
+   :target: https://odoo-community.org/get-involved?utm_source=readme
+   :alt: Odoo Community Association
+
+=======================
+CRM - Fix lead currency
+=======================
+
+.. 
+   !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+   !! This file is generated by oca-gen-addon-readme !!
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+   !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+.. |badge1| image:: https://img.shields.io/badge/maturity-Beta-yellow.png
+    :target: https://odoo-community.org/page/development-status
+    :alt: Beta
+.. |badge2| image:: https://img.shields.io/badge/license-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/19.0/crm_lead_company_currency_fix
+    :alt: OCA/crm
+.. |badge4| image:: https://img.shields.io/badge/weblate-Translate%20me-F47D42.png
+    :target: https://translation.odoo-community.org/projects/crm-19-0/crm-19-0-crm_lead_company_currency_fix
+    :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=19.0
+    :alt: Try me on Runboat
+
+|badge1| |badge2| |badge3| |badge4| |badge5|
+
+In Odoo standard source code, leads' currency is defined as a computed,
+non-stored field, which follows this workflow:
+
+-  if the lead's company is set, then the company currency is used
+
+-  if the lead's company is not set, then the user's company currency is
+   used
+
+Since the field is not stored, it leads to 2 main issues:
+
+1) Changing a company's currency will change the currency on all the
+   existing leads linked to that company, but not the amounts. Eg:
+
+   -  you have a lead linked to a company in EUR
+   -  the lead's expected revenue is 1000 EUR
+   -  you change the company currency to USD
+   -  the lead's expected revenue becomes 1000 USD
+
+2) If a lead is not linked to a specific company, then 2 users that are
+   logged in with 2 different companies and different currencies will
+   see the lead's amounts with different currencies. Eg:
+
+   -  you have a lead where the company is not set
+   -  accessing the lead with a user whose main company is in EUR will
+      display an expected revenue of 1000 EUR
+   -  accessing the lead with a user whose main company is in USD will
+      display an expected revenue of 1000 USD
+
+This module stores the field in the DB to keep data consistency, and
+will only update the lead's currency only if the lead's company itself
+is updated. The behavior for computing the lead's currency will remain
+the same (currency is retrieved from the lead's company or the current
+user's company), but the issues are fixed:
+
+1) Changing a company's currency **will not change the currency on
+   existing leads**, only on the ones created after the currency has
+   been updated. Eg:
+
+   -  you have a lead linked to a company in EUR
+   -  the lead's expected revenue is 1000 EUR
+   -  you change the company currency to USD
+   -  the lead's expected revenue is still 1000 EUR
+   -  a newly created lead's expected revenue will be in USD, not EUR
+
+2) If a lead is not linked to a specific company, then 2 users that are
+   logged in with 2 different companies and different currencies will
+   see the **lead's amounts with the same currency** (computed from the
+   company of the first user that triggers the recomputation). Eg:
+
+   -  you have a lead where the company is not set
+   -  accessing the lead with a 1st user whose main company is in EUR
+      will display an expected revenue of 1000 EUR
+   -  accessing the lead with a 2nd user whose main company is in USD
+      will display an expected revenue of 1000 EUR, because the currency
+      was set from the previous user's company
+
+**Table of contents**
+
+.. contents::
+   :local:
+
+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_lead_company_currency_fix%0Aversion:%2019.0%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
+-------
+
+* Camptocamp
+
+Contributors
+------------
+
+-  Silvio Gregorini <silvio.gregorini@camptocamp.com> (`Camptocamp
+   SA <https://www.camptocamp.com/>`__)
+
+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/19.0/crm_lead_company_currency_fix>`_ project on GitHub.
+
+You are welcome to contribute. To learn how please visit https://odoo-community.org/page/Contribute.
diff --git a/crm_lead_company_currency_fix/__init__.py b/crm_lead_company_currency_fix/__init__.py
@@ -0,0 +1 @@
+from . import models
diff --git a/crm_lead_company_currency_fix/__manifest__.py b/crm_lead_company_currency_fix/__manifest__.py
@@ -0,0 +1,20 @@
+# Copyright 2026 Camptocamp SA
+# License LGPL-3.0 or later (https://www.gnu.org/licenses/agpl.html).
+
+{
+    "name": "CRM - Fix lead currency",
+    "summary": "Fixes usage of leads' currencies",
+    "version": "19.0.1.0.0",
+    "category": "Sales/CRM",
+    "website": "https://github.com/OCA/crm",
+    "author": "Camptocamp, Odoo Community Association (OCA)",
+    "license": "LGPL-3",
+    "depends": [
+        # Odoo
+        "crm",
+    ],
+    # Make sure this module is installed as soon as possible
+    # after ``crm`` is installed: this way, the override of
+    # ``crm.lead._field_to_sql()`` will work correctly
+    "sequence": 0,
+}
diff --git a/crm_lead_company_currency_fix/models/__init__.py b/crm_lead_company_currency_fix/models/__init__.py
@@ -0,0 +1 @@
+from . import crm_lead
diff --git a/crm_lead_company_currency_fix/models/crm_lead.py b/crm_lead_company_currency_fix/models/crm_lead.py
@@ -0,0 +1,20 @@
+# Copyright 2026 Camptocamp SA
+# License LGPL-3.0 or later (https://www.gnu.org/licenses/agpl.html).
+
+from odoo import fields, models
+
+
+class CRMLead(models.Model):
+    _inherit = "crm.lead"
+
+    # OVERRIDE: make ``company_currency`` a stored field
+    company_currency = fields.Many2one(store=True)
+
+    def _field_to_sql(self, alias, field_expr, query=None):
+        # OVERRIDE: module ``crm`` override for ``field_expr == "company_currency"``
+        # creates a SQL object that represents the dynamic nature of the original
+        # computed, non-stored field. We need to ignore that to use the DB-stored
+        # values instead.
+        if field_expr == "company_currency":
+            return models.Model._field_to_sql(self, alias, field_expr, query=query)
+        return super()._field_to_sql(alias, field_expr, query=query)
diff --git a/crm_lead_company_currency_fix/pyproject.toml b/crm_lead_company_currency_fix/pyproject.toml
@@ -0,0 +1,3 @@
+[build-system]
+requires = ["whool"]
+build-backend = "whool.buildapi"
diff --git a/crm_lead_company_currency_fix/readme/CONTRIBUTORS.md b/crm_lead_company_currency_fix/readme/CONTRIBUTORS.md
@@ -0,0 +1 @@
+- Silvio Gregorini \<<silvio.gregorini@camptocamp.com>\> ([Camptocamp SA](https://www.camptocamp.com/))
diff --git a/crm_lead_company_currency_fix/readme/DESCRIPTION.md b/crm_lead_company_currency_fix/readme/DESCRIPTION.md
@@ -0,0 +1,48 @@
+In Odoo standard source code, leads' currency is defined as a computed, non-stored
+field, which follows this workflow:
+
+- if the lead's company is set, then the company currency is used
+
+- if the lead's company is not set, then the user's company currency is used
+
+Since the field is not stored, it leads to 2 main issues:
+
+1) Changing a company's currency will change the currency on all the existing leads
+   linked to that company, but not the amounts. Eg:
+    - you have a lead linked to a company in EUR
+    - the lead's expected revenue is 1000 EUR
+    - you change the company currency to USD
+    - the lead's expected revenue becomes 1000 USD
+
+2) If a lead is not linked to a specific company, then 2 users that are logged in with
+   2 different companies and different currencies will see the lead's amounts with
+   different currencies. Eg:
+    - you have a lead where the company is not set
+    - accessing the lead with a user whose main company is in EUR will display an 
+      expected revenue of 1000 EUR
+    - accessing the lead with a user whose main company is in USD will display an 
+      expected revenue of 1000 USD
+
+This module stores the field in the DB to keep data consistency, and will only update
+the lead's currency only if the lead's company itself is updated. The behavior for
+computing the lead's currency will remain the same (currency is retrieved from the
+lead's company or the current user's company), but the issues are fixed:
+
+1) Changing a company's currency **will not change the currency on existing leads**,
+   only on the ones created after the currency has been updated. Eg:
+    - you have a lead linked to a company in EUR
+    - the lead's expected revenue is 1000 EUR
+    - you change the company currency to USD
+    - the lead's expected revenue is still 1000 EUR
+    - a newly created lead's expected revenue will be in USD, not EUR
+
+2) If a lead is not linked to a specific company, then 2 users that are logged in with
+   2 different companies and different currencies will see the **lead's amounts with
+   the same currency** (computed from the company of the first user that triggers the
+   recomputation). Eg:
+    - you have a lead where the company is not set
+    - accessing the lead with a 1st user whose main company is in EUR will display an 
+      expected revenue of 1000 EUR
+    - accessing the lead with a 2nd user whose main company is in USD will display an 
+      expected revenue of 1000 EUR, because the currency was set from the previous
+      user's company
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		@@ -0,0 +1 @@
		- Silvio Gregorini \<<silvio.gregorini@camptocamp.com>\> ([Camptocamp SA](https://www.camptocamp.com/))