Check whether enhancement implementation &1 is causing the syntax error

What causes this issue?

The enhanced object contains syntax errors. The system cannot determine
precisely whether enhancement implementation &V1& is actually causing
the syntax error.

System Response

The adjustment tool will create a conflict for enhancement
implementation &V1& if one of the following conditions if fulfilled:
The syntax error directly refers to enhancement implementation &V1&.
The syntax error refers to an include that was enhanced through
enhancement implementation &V1&.
If the conflict is processed in the adjustment tool, this information
will appear. Afterwards, the split-screen editor is started. This
displays the include to which the syntax error is currently referring.
This must not necessarily be the include in which the error can be
rectified!

How to fix this error?

Check whether enhancement implementation &V1& causes the syntnax error
and remove it, if required.
If enhancement implementation &V1& does not cause the syntax error, set
the conflict to the status "Adjusted" by pressing the pushbutton
"Conflict is adjusted".
If the adjustment tool does not jump to the include in which the syntax
error can be removed, proceed as follows:
First adjust all conflicts in enhancement implementation &V1&.
Save enhancement implementation &V1&.
Remove the syntax error with the corresonding ABAP Workbench tool.
Activate enhancement immplementation &V1&.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.