This endpoint is currently in Beta and available for testing. It may contain bugs, and breaking changes can occur at any time without prior notice. We do not recommend using Beta endpoints in production environments. Should you choose to use it in production, you assume full responsibility for any resulting issues.

This endpoint requires the following scopes: supplierInvoice:update.

Create a line item on a supplier invoice. Name, description, unit, product number and tax category are taken from the product, the cost center from the invoice, unless the request provides them. Line items are documentation of what was invoiced: they never change the totals of the invoice.