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Variable quantity in contract recurrent invoicing

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With this module, you will be able to define in recurring contracts some
lines with variable quantity according to a provided formula.

**Table of contents**

.. contents::


#. Go to Invoicing > Configuration > Contracts > Formulas (quantity).
#. Define any formula based on Python code that stores at some moment a
float/integer value of the quantity to invoice in the variable 'result'.

You can use these variables to compute your formula:

* *env*: Environment variable for getting other models.
* *context*: Current context dictionary.
* *user*: Current user.
* *line*: Contract recurring invoice line that triggers this formula.
* *contract*: Contract whose line belongs to.
* *invoice*: Invoice (header) being created.

.. figure::
:alt: Formula form
:width: 600 px


To use this module, you need to:

#. Go to Invoicing > Sales > Contracts and select or create a new contract.
#. Check *Generate recurring invoices automatically*.
#. Add a new recurring invoicing line.
#. Select "Variable quantity" in column "Qty. type".
#. Select one of the possible formulas to use (previously created).

Bug Tracker

Bugs are tracked on `GitHub Issues <>`_.
In case of trouble, please check there if your issue has already been reported.
If you spotted it first, help us smashing it by providing a detailed and welcomed
`feedback <**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.



* Tecnativa


* Pedro M. Baeza <>
* Dave Lasley <>
* Souheil Bejaoui <>


This module is maintained by the OCA.

.. image::
:alt: Odoo Community Association

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/contract <>`_ project on GitHub.

You are welcome to contribute. To learn how please visit