Generic search string / replace string is not permitted for replace

What causes this issue?

The search string or replace string contains the character + or *, both
of which are interpreted generically in the search. You cannot use
generic characters in a replace operation.

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?

If + or * occurs non-generically, you must combine them with the escape
symbol #, so + is represented by #+, * by #* and # by ##.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.