Thanks for your reply.
I tried the following:
- remove the update steps in the add-transaction that I do not want to be sent to SAP first
- create a new action with a edit-transaction step. in this transaction, i set the update step. all properties are just copied from the existing object
- modify the transmit action. the last subaction before the actual transmit is the new action with the edit-transaction. (loop over all objects concerned)
However, i get an error message -> failed to apply transaction...
Any suggestions?