Troubleshooting
Problem
You receive message IMW0254E Error with return code 404 (RC404) when trying to use the CICS Transaction Server for z/OS (CICS TS) V2 Web server plug-in.
Cause
APPLID in service directive was coded in uppercase.
Diagnosing The Problem
The error 404 means NOTFOUND, cannot find the program trying to be executed within the directories on the WebServer. You are entering the following on the browser:
http:// example_server:5002/cics/cwba/techweb1 (Note: space after http:// added to prevent URL from being live)
5002 is the port number of webserver. techweb1 is the CICS application expected to be run on CICS host.
You see the message Passing /web/webserver2/pub/cics/cwba/techweb1
The /web/webserver2/pub portion of the above directory path comes from your default PASS statement. This is due to not finding a match. Your httpd.conf file has the following PASS statement:
Service /cics/cwba/* /etc/dfhwbapi.so:DFHService/SAMPLE/CICS/CSM3/*AdapterS
The CICS Internet Guide indicates the APPLID must be in lower-case.
Resolving The Problem
Do not code the APPLID in uppercase for the service directive in the WebServer httpd.conf file.
Product Synonym
CICS/TS CICS TS CICS Transaction Server
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Document Information
Modified date:
05 January 2026
UID
swg21026567