Diagnosis
The system was unable to delete all of the master data, because some ofthe master data is still being used.

Procedure
First, delete the master data from the places where it is still beingused (for example, in InfoCubes, as an attribute, in a hierarchy).Refer to the application log: Transaction slg1, object RSDMD,sub-object MD_DEL. The application log contains a list showing youwhether the master data has been deleted or if it is still in use, andif so where it is being used. The list is complete only when youconfirm that you want to delete all the master data that is in use.
When you have checked each case where master data is in use, try thedeletion process again.