SRM EBP Purchase Order not replicating to ECC

Hello,

We use extended classsic scenario and are noticing an issue only in our QA environment.

When a PO is created in EBP, the replication to ECC fails and the error message in RZ20:

"Backend application errors PO 1000000775: Missing authorization: Pur. Order Create Purch. Gr oup A0A"

T09\Business to Business

Procurement(020)\...\Purc: method

BBP_ANALYZE_PO_APPLIC is not released

Any suggestions would be greatly appreciated.

regards,

APB