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Unique Product Internal Reference
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This module adds a constraint on the internal reference of the product
to make it unique across the database.

**Table of contents**

.. contents::
   :local:

Usage
=====

* Unable to save a product when a new internal reference or default_code value is
  the same with an existing record.
* A pre_init_hook process is initiated when there exist records without an internal reference(default_code).
  A default value is generated to populate empty field as a temporary value.

Known issues / Roadmap
======================

* Avoid duplicate warnings. Odoo has a warning for duplicate "Internal Reference" of its own (it doesn't block from saving). Now both warnings are displayed when trying to save a duplicate "Internal Reference".

Bug Tracker
===========

Bugs are tracked on `GitHub Issues <https://github.com/OCA/product-attribute/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/product-attribute/issues/new?body=module:%20product_code_unique%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
~~~~~~~

* Open Source Integrators

Contributors
~~~~~~~~~~~~

* Antonio Yamuta <ayamuta@opensourceintegrators.com>
* Raf Ven <raf.ven@dynapps.be>
* Watthanun Khorchai <watthanun_t@hotmail.com>
* Nedas Žilinskas <nedas.zilinskas@web-veistamo.fi>

Maintainers
~~~~~~~~~~~

This module is maintained by the OCA.

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   :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/product-attribute <https://github.com/OCA/product-attribute/tree/16.0/product_code_unique>`_ project on GitHub.

You are welcome to contribute. To learn how please visit https://odoo-community.org/page/Contribute.