1:n mapping in ccBPM fails !!

Hi

We have requirement to split a message(a master structure that has data for multiple IDOCS of multiple IDOC Types) into 'n' IDOCs using multi-mapping. The mapping program works fine in Message Mapping & Interface Mapping test tabs. We see 1 message getting split into n IDOCS.

However , when ccBPM calls this mapping from transformation step , we do not see a output. All the multi line containers are empty(thats wat we could see from the workflow log).

We are stuck with no proper trace messages to look at . Any ideas how to resolve this ? we r on SP9 , N:1 mapping call works and a scenario configured for aggregating n IDOCS into 1 message succeeds, but not the reverse !!!

Thanks

Saravana