IDAETERR63 - Invalid reference to null field

Reason:

A field that had the value NULL was referenced in context where it could not be used. Examples of such use include:

Moving a (source) field with the value NULL to a (target) field that cannot assume such a value.
Passing the value NULL in a CALL (source) parameter from a program to a subprogram, where the (target) subprogram parameter cannot assume the value NULL.

Action:

Ensure that the source field cannot assume the value NULL or redefine the target field to accept the value NULL.