contract/contract_variable_quantity/readme/CONFIGURE.md

1. Go to Invoicing > 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.