Diagnosis
The source scanners like the source scanner for user exits have an ownknowledge base, which contains some information about how sourcesshould be.
In this case the embeded knowledge base classified a source as "
simple". This means that it contains only declarative statementslike FUNCTION .. ENDFUNCTION, FORM .. ENDFORM and CONSTANTS andINCLUDE. And this holds not only for the main source, but recursivelyfor all included sources too.

Procedure
If a source is "simple", it does not make a big differencewether its Unicode flag is on or off.