We are on SRM 7.0, ECC 6.0 (Classic scenario).
My SC has been approved and a PO has been created in ECC, I have also created a confirmation against this from SRM which resulted in a GR being created against the PO in ECC.
Now I have activated standard 1 step approval of invoice (WS10400017). After the SC creator has created an invoice in SRM against the ECC PO number, the WF is triggered and is routed to his manager. However when the manager opens the work item in the UWL, he gets an error "Page not found". But he is able to approve without opening the detailed work item.
Now the other issue is in BBP_PD I see an "Error in transmission" after manager's approval. Strangely there is no error in RZ20, hence I am unaware about how to track as to why the invoice is not posted in the ECC.
PS: Partner profile settings are done (I have defined BBPIV message type)