Transaction MIGO - get classification characteristic-value

Hi

In the user-exit ZXMBCU01 in transaction MIGO we print a label. On this label we need to print two characteristic values of the classification. My problem is, that at this time these values are not physically in the database. During debugging I can only find the number of the batch.

Has anyone an idea how to get these values maybe out of a variable field in memory?

Regards

Dietmar