The scenario is to send a soap request to SAP ERP through XI from legacy system A, ERP and return information back to the legacy system. we have encounter this issue after XI received the soap from legacy system A.
I have already done:
1. tested the JCO related RFC destination,
2. Check PIAPPLUSER has role SAP_XI_SERV_USER
3. refresh SXI_CACHE
4. ENSURE USER PIISUSER and PIAFUSER have the correct password
5. reset the password in exchange profile and ensure it is consistant with the password maintained in SU01, and restart the j2ee engine
however, we still encounter the same 401 issue.
Please kindly advice the approach to resolve this issue
Regards
Jack Lee