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Unique Supplier Invoice Number in Invoice
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This module checks that a supplier invoice/refund is not entered twice.
This is important because if you enter twice the same supplier invoice,
there is also a risk that you pay it twice !

This module adds a constraint on supplier invoice/refunds to check that
(commercial_partner_id, supplier_invoice_number) is unique, without
considering the case of the supplier invoice number. To activate that
feature:

- Go to Invoicing/Accounting > Configuration > Settings > Vendor Bills
- Check the 'Check Unicity on Supplier Invoice Number' box.

**Table of contents**

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   :local:

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

Bugs are tracked on `GitHub Issues <https://github.com/OCA/account-invoicing/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/account-invoicing/issues/new?body=module:%20account_invoice_supplier_ref_unique%0Aversion:%2018.0%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
-------

* Savoir-faire Linux
* Acsone SA/NV

Contributors
------------

- Marc Cassuto <marc.cassuto@savoirfairelinux.com>
- Mathieu Benoit <mathieu.benoit@savoirfairelinux.com>
- Alexis de Lattre <alexis.delattre@akretion.com>
- Thomas Binsfeld <thomas.binsfeld@acsone.eu>
- Andrea Stirpe <a.stirpe@onestein.nl>
- Miguel Gandia <miguel@studio73.es>
- Juany Davila <juany.davila@forgeflow.com>

Maintainers
-----------

This module is maintained by the OCA.

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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/account-invoicing <https://github.com/OCA/account-invoicing/tree/18.0/account_invoice_supplier_ref_unique>`_ project on GitHub.

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