LO-ARM Cross company

Dear experts,

I am configuring advanced cross company returns. I am using PO type NB2C. OBD done. But output type SPED is not getting determined in OBD. It says error "Processing program missing for output SPED (medium 8) Message no. VN020". But in NACE, application V2, Output type SPED, Program /SPE/STO_ID_PROCESSING and FORM routine STO_ID_CREATION is assigned, What else i am missing ? Second question, isn't in case of LO-ARM, system should automatically create IBD, if no SPED is maintained in outbound delivery? But its not creating. Any leads will be helpful .

Regards..