Activity Chart Checks : (C3071) Formal parameters whose data-type is not global

(C3071) Formal parameters whose data-type is not global

Error In:
Correctness
Description:
Formal parameters are defined in terms of a User-Defined Type (UDT), but the UDT is defined in the generic chart. Because the UDT is not visible outside the generic chart, any actual binding cannot have this type. The error is generated in the tested generic chart.
Note: UDTs are normally defined in a Global Definition Set (GDS).
Erroneous Elements:
Data-items with formal parameters