SAP Knowledge Base Article - Preview

2346018 - HTTP 401 error after service user password change


In a double stack PI system, you did a service user password change while some message procesing is still on going.

After this, you noticed some messages failed with error HTTP 401 Unauthorized.

You tried to resend them, but still with the same error. If you tried several times, the service user(PIAFUSER by default) would get locked.





  • SAP Netweaver Process Integration
  • SAP Process Orchestration(PO)


SAP NetWeaver 7.0 ; SAP NetWeaver 7.1 ; SAP NetWeaver 7.3 ; SAP NetWeaver 7.4 ; SAP enhancement package 1 for SAP NetWeaver 7.0 ; SAP enhancement package 1 for SAP NetWeaver 7.3 ; SAP enhancement package 1 for SAP NetWeaver Process Integration 7.1 ; SAP enhancement package 2 for SAP NetWeaver 7.0


PIAFUSER, locked, AF service user, HTTP 401, Unauthorized , KBA , BC-XI-CON-AFW , J2EE Adapter Framework , How To

About this page

This is a preview of a SAP Knowledge Base Article. Click more to access the full version on SAP for Me (Login required).

Search for additional results

Visit SAP Support Portal's SAP Notes and KBA Search.