SAP Message UMGLOG428 - SPUMG Language Lists are not consistent. Please check contents.

Diagnosis
The check "Language List" checks the consistency of the Language Listand the Ambiguous Language List. One or more languages have been foundwhich have been inserted in both language lists. This must not happen.

Procedure
Please go to SPUMG menu "Edit -> Language Lists". Search for thelanguages which have been inserted in both language lists.
If you have modified the language lists directly (in transaction SE16 orby creating a report) you have to revert the changes.
If SPUMG scans have been executed while the language list had theinconsistent status, you have to reset the corresponding scans.
If you do not know how the inconsistency was created, you should open aservice message on component BC-I18-UNI.