Hello everyone,
I need to sum some values on my sales invoices. I want to sum all the quantities for all my invoice lines. There can be only one line but also 2,3 ,4 etc...
For instance on my sales order I have 3 lines:
I want to have the addition of those quantites, that means : 3
Here is my quantity in my electronic reporting (don't worry the names are not correct beacause i changed the model mapping):
What is the formula in order to sum those values please ?
Thank you.

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