What causes this issue?

Field name <(>&<)>V2& is not allowed for module <(>&<)>V1& in table
T7PBSCA3A.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Use the IMG to call maintenance view "Assignment of Results from
Calculation Modules to Wage Types" (view V_T7PBSCA3A or, for
customer-specific assignments, view V_T7PBSCA3B), and change the value
in the "Field Name from Structure" column to a valid value. For
information about valid values, see transaction SE11, in which you can
display all possible substructures for structure
HRDEPBSCAS_RESULT_VERSORGUNG and navigate further in these.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.