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PEPPOL-EN16931-R121BT-149
input
The item price base quantity is not strictly positive
`Item price base quantity` (BT-149) must be a number strictly greater than zero.
Only the issuer holds this value: Factlint reports it and never fabricates it. Test your invoice to find out whether it is affected.
Why this error happens
The base quantity is the divisor in the line calculation: at zero the net amount is not merely wrong, it does not exist. The value usually comes from a field left at its default rather than from data entry.
How to fix it
Fill in the real base quantity — most often 1. Factlint does not replace it: it governs the unit price, and giving it a value would change the line amount.