bb396515_S_Minor_Codes___Mainframe_Code__DML_FUNCTION
[CODE] 77 [DML FUNCTION] 
The run-unit has not been bound or has been bound twice. When combined with a major code of 00, this code means either the program is no longer signed on to the subschema or the variable subschema tables have been overwritten.
IDMS Minor Codes - Mainframe Code
DML FUNCTION