Diagnosis
The bank data &V1& of the business partner, used in contract accountV2 with partner v3 as outgoing payment details, has been deleted.

Procedure
Use the pushbutton situated to the right of this line to jump tomaintenance of contract account &V2&. Here, you should choose otheroutgoing payment details for the business partner and then transfer thechanges.
These changes are then saved when you save the current businesspartner.