What is the exact issue?
Issues with a built-in function
Error marker when trying to enter numeric values directly
Problems with date based types in my mappings
I see an error marker. Found X expected Y
HINTS
Problems with complex recursive types?
http://service.sap.com/sap/support/notes/1302209
Mappings at design time that do not work at runtime?
http://service.sap.com/sap/support/notes/1302294
XSD-related limitations
http://service.sap.com/sap/support/notes/1266539