E-Rechnung Payment Means EDIFACT Codes
On this page you have got the possibility to subsequently change or add new EDIFACT Codes, which ideally should have been assigned with the SIEVERS E-Rechnung setup wizard.

Furthermore you can restore the initally created EDIFACT Codes with the action Add/Reset Payment Means EDIFACT Codes. Manually created codes will not be touched by this.
Hinweis
If you use EDIFACT code 49 or 59, the field Our account no. must be filled in for the customer.