MFPLI00170S "insert-name" is declared as TYPE but its TYPE reference "insert-name" (or one of its members) contains an invalid REFER option. The REFER option refers to a variable which is not contained within the same level-1 STRUCTURE as the TYPE reference.

Resolution:
Try using a fully qualified reference in the REFER option in the declaration of the iTYPE reference.
Module:
EXPTYP.PL1