Invoking the JCLCheck REST API from the API ML catalog and gets severe error message "CAY6361S ERROR DURING 'EXEC LOAD' PHASE OF THE REXX INTERFACE. CODE='0020', REXX OPTION NEGATED"
Runtime option STDREXX(caz1rexx) is specified.
To resolve the CAY6361S error when invoking JCLCheck from the API catalog, update the JCLCheck STDREXX runtime option to the following format:
STDREXX(CAZ1REXX,*,[your_rexx_library_dsname])
In other words, the use of STDREXX with the REST API is limited to the form that specifies the REXX library name. Option STDREXX is documented here