Cannot show implicit enhancement implementation due to syntax error

What causes this issue?

This program contains syntax errors. Therefore<(>,<)> the implicit
enhancement points cannot be determined and thus the enhancement
implementations for implicit enhancement points<(>,<)> too<(>,<)> cannot
be displayed. The cause is a syntax error in the enhancement
implementation &V1&.

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

System Response

How to fix this error?

Remove the syntax errors.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.