MSIR.0404 Null EXCEPTIONS value not allowed on SIRFIELD RELATE command of preallocated and non-preallocated fields

This message indicates that a SIRFIELD RELATE command was issued with an EXCEPTIONS clause containing a the null string () as a value, and that one of the fields referenced on the command is preallocated (has an OCCURS attribute) and the other is not. This is not allowed; if you must have the null string as an exception value, change the OCCURS attribute on one of the field definitions so that they agree.

The command is rejected.