Learn about the meaning of a SOC4 abend in mainframe programming. Discover the cause of this system abend code and how to troubleshoot it.
Table of Contents
Question
What is meant by SOC4 abend?
A. Module not found
B. Dataset not found
C. Database not found
D. None of the above
Answer
A. Module not found
Explanation
A SOC4 abend in mainframe programming means that a module or program could not be found by the operating system when attempting to load or link it.
The SOC4 system abend code specifically indicates that a “Module not found” error has occurred. This happens when the module or program being called or referenced does not exist in any of the libraries in the job’s STEPLIB, JOBLIB, or system LINKLST concatenations.
Some common reasons for a SOC4 abend include:
- The module name was misspelled in the JCL or program call
- The module is missing from the specified library
- The wrong library is being referenced in the JCL or program
- The module did not properly compile or link into the target library
To resolve a SOC4 abend, programmers need to verify that the module name is spelled correctly, exists in one of the libraries being searched, and those are the correct libraries specified in the JCL or program load/link. Compiling the source code and linking/binding it into the proper library is also necessary if this has not already been done.
In summary, SOC4 is a common mainframe abend code meaning “Module not found” when attempting to load or link to it. Careful attention to module names, proper libraries, JCL, and successful compiles are needed to avoid and troubleshoot this error.
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