Hello!

We are using Odoo version 12. We are auto-validating the invoices which are created by a 3rd party module based on E-Commerce orders. Following code is involved:

                if not invoiceId:
                invoiceId = saleObj.action_invoice_create()
                invoiceObj = self.env['account.invoice'].browse(invoiceId)
                if ecommerceInvoiceId and invoiceId:
                    invoiceObj = self.env[
                        'account.invoice'].browse(invoiceId)
                    invoiceObj.write({'name': ecommerceInvoiceId})
                invoiceObj = self.env['account.invoice'].browse(invoiceId)  
                invoiceObj.action_invoice_open()# Open(confirm) invoice after creation. 

The Problem: The validation works fine. But the date_due calculation based on the payment terms does not work. Date_Due is always the same as the invoice date. It should be +30 Days from the invoice date, based on the payment terms. The payment terms are set correctly in the invoice. If I validate the invoice manually with the button, the date_due is calculated correctly.

Thanks for your help!