System Variable 449: Add New Voucher: Show Payment Settings
Use this System Variable to determine if payment details should be visible when creating invoices.
When creating a creditor invoice, the default payment information of the selected creditor is used. If this System Variable is enabled, the Payment Definition and Payment Method fields are visible in the Create Invoice dialog box.
If System Variable 1096 is not enabled, you can edit the Payment Definition and Payment Method fields in the Create Invoice dialog box as well as in the Creditor Invoices grid after the invoice has been created. If System Variable 1096 is enabled, these fields are visible, but you cannot edit them and instead, only the details from the selected creditor can be used.
It may be necessary to perform a refresh when modifying System Variable values.