SAP Knowledge Base Article - Preview

2224052 - 503 Service not available - IcrFindTargetSystem: No system found for


The service is available and accessible via direct access to the back-end system, however the HTTP error 503 Service not available appears when accessing via Web Dispatcher.

When reproducing the issue with Web Dispatcher (dev_webdisp) trace level set to 2 or 3, following entries are found:

[Thr 0] IcrFindTargetSystem: No system found for  <url / vhost / path>
[Thr 0] HttpGetRouteTargetSystem: no system available, rc=-2
[Thr 0] No target system found




  • SAP Web Dispatcher
  • Operating System independent
  • Database independent
  • SAP NetWeaver
  • SAP Web Application Server for SAP S/4HANA
  • ABAP Platform 


ABAP platform all versions ; SAP NetWeaver all versions ; SAP Web Application Server for SAP S/4HANA all versions


wdisp/system, icm/HTTP/mod, SRCSRV, SRCVHOST, SRCURL, 503 Service not available, Not Reachable , KBA , BC-CST-WDP , Web Dispatcher , BC-MID-SCC , SAP Cloud Connector On-Demand/On-Premise Connectivity , Problem

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.