Troubleshooting DFHKE0104, DFHPA1909, and DFHPA1910 messages for a new CICS Transaction Server region
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You are starting a new CICS Transaction Server region under a new release of CICS. You receive message DFHKE0104 to indicate an incorrect SVC number has been supplied to CICS. This message is followed by messages DFHPA1909 and DFHPA1910, indicating SVC number and CICSSVC DFHSIT override are not corr
DFHPA1909: Data is invalid for keyword. Respecify keyword and data.
DFHPA1910: SIT override is not recognized. Override is ignored.
The probable cause of this issue is the CICS LPA library, SDFHLPA, was not included in the MVS LPALST concatenation for the release of CICS that you started. To resolve this issue, add the correct version of the SDFHLPA library to your MVS LPALST concatenation. This will install the correct version of DFHCSVC.
The DFHCSVC module is a type 3 SVC that passes control to the various required routines, dependent on the parameter passed to it. On a first request for a particular function, it loads the required module and puts its address in the AFCB and then branches to that code.