Business partner Idoc BUPA_INBOUND_MAIN_SAVE_M09

Hello experts,

I have a requirement when i need to send IDoc to SAP MDG system for business partner

Idoc Name:BUPA_INBOUND_MAIN_SAVE_M09

But in this Idoc there is no primary key, thus using the from clause to form the hierarchy structure is very difficult,

I used a key generator(to form a surrogate key) and used this surrogate key as primary, which generated the Idoc not now i get an error, maximum number of allowed repetition has exceeded.

Any help on this would be appreciated

Thanks and regards,

Abhishek