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Variable quantity in contract recurrent invoicing

Project description

License: AGPL-3

Variable quantity in contract recurrent invoicing

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


  1. Go to Sales > Configuration > Contracts > Formulas (quantity).

  2. 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.
Formula form


To use this module, you need to:

  1. Go to Sales -> Contracts and select or create a new contract.
  2. Check Generate recurring invoices automatically.
  3. Add a new recurring invoicing line.
  4. Select “Variable quantity” in column “Qty. type”.
  5. Select one of the possible formulas to use (previously created).
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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.




Odoo Community Association

This module is maintained by the OCA.

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.

To contribute to this module, please visit

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