Diagnosis
You have assigned more than one letter with a non-initial report type(for example, interest certificate, external account statement orpayment schedule). Although this is permitted if correspondence istriggered manually, it is not permitted for mass processing.

System Response
The system allows you to continue, but the evaluation periods for theletters may be incorrect.

Procedure
Define a new correspondence activity for mass processing inCustomizing, or change the existing correspondence activity so thatonly one letter of this type is assigned.