The GDG BASE total for extension cells is zero, but there are GDG extension cells for this BASE entry.
Processing terminates with error, setting Condition Code to 12.
Check your GDG Base extension cells and make sure their number agrees with the given count value for the GDG BASE entry itself.
Verify the existence of the GDG Base extension cells and update the GDG base count as appropriate.
DFSMSdfp
IDCDA01, IDCDA03