EBS: missing bank statement number

Hello,

for a customer I customize a bank account for electronic bank statement.

In the file that I get from the bank, the bank statement number is not maintained.

:20:STARTUMS

:25:67123456/12345678

:28C:0 <-- bank statement number is missing

If the number is missing, the bank statement cannot be read.

In the transaction FF_4 the following message appears: "Abort import: statement number missing (record type :28:). Error message FV154.

Does anyone know a solution for this?

One could take over the bank statement date as bank statement number. But unfortunately I haven't found a way (user exit?) where or how to do it.

For any advice I am very grateful :)

Many greetings and thanks in advance!

Alicja