An EXEC CICS WRITE command to a VSAM file has failed in a CICS® Service Flow Runtime system module or has failed in one of your generated FEPI navigator or Link3270 navigator programs.
This condition can also occur in the CICS SFR Error Listener system module (DFHMAERR or DFHMAERQ, depending upon your installation) when attempting to write to the error log DFHMAERF. In this case, the error message is written to the system console.
Dump the error log DFHMAERF to determine the problem. Check the file attributes and that the specified file is defined correctly and enabled to CICS. A duplicate key (DUPKEY) condition on the alternate index SLU Connection file (DFHMAC1F), will not cause this condition: CICS response code = 15.
If the error occurred on the Link3270 business state file DFHMAL2F, you can use the CICS transaction ID, field Tranid:, found in the error log dump to determine the program name of the generated Link3270 navigator that called the system module reporting the problem if necessary.