CASXB0002S Expected DFHMSD TYPE=FINAL - remainder of source discarded

Either the end of the input file was found without a closing DFHMSD TYPE=FINAL macro, or a second DFHMSD macro was found, but did not contain the TYPE=FINAL argument. The latter can be caused by coding multiple mapsets in the same .bms source file, which is not allowed by this system.
System Action:
Loading of the BMS file is aborted.
Resolution:
Verify that your source file contains one and only one closing DFHMDF macro as the last source statement preceding the END statement.
Module:
scrload
Destination:
STDOUT, .TRL file