MVS SYSTEM CODES-S806

A module requested by the program could not be found.

1. The module requested did not exist in the data sets specified in the STEPLIB or JOBLIB.
2. A JCL STEPLIB or JOBLIB DD statement was missing or incorrect.
3. The module name was misspelled.
4. An I/O error occurred in searching for the module in the library directory.

1. Verify that the correct program is being requested.
2. Ensure that the appropriate STEPLIB or JOBLIB DD statements are in the JCL.
3. If necessary, recreate the data set.
Ref: www.ibmmainframes.com