Use
You can run master data maintenance in two different sessions:
Integration
You cannot run the two sessions at the same time, meaning that
Functions
Creating or Changing Master Data:
You can add new data records for master data for a characteristic, change single data records for master data or else select several data records for master data and assign global changes to them.
Deleting Master Data at Single Record Level:
You can delete single records or else select and delete several records.

You can only delete data records for master data if the master data you want to delete still has no transaction data, is not used as an InfoObject attribute and has no hierarchies.