BusinessPartnerERPReplicationIn – blocking error message DEBMAS_CFS

Hello,

I’m implementing the new interfaces between ECC and C4C.

I’m having the following blocking error message: ID mapping for external value (ID of customer in ECC) missing.

If I go in application and user management –> edit id mapping for integration –>mapping of ERP account the mapping is missing.

This mapping should be done automatically based upon a rule, right?

If yes, could somebody tell me what is this rule?

How can I solve this issue?

Thanks,

Barbara.