If a new attribute or relation was added to a Data Definition with new product version and a custom attribute or relation with the same name already exists in database, the custom attribute or relation needs to be renamed.
Applies to all Data Definitions.
Detects problems caused by product changes and customization.
On fixing this issue automatically, the existing <Attribute/Relation> will be renamed to Ud_<Attribute/Relation Techn. Name>. This will probably harm customizings that are using this <Attribute/Relation>. Please check such customizings after update with highest care.