Prerequisites
You can only delete a matchcode ID once all the corresponding database objects for this ID have been deleted. You must do the following before you can delete a matchcode ID:
Procedure
Choose Matchcode ID
® Delete.Confirm the deletion request.
Information on the deletion process and on any errors that may have occurred is recorded in the deletion log. You can display the deletion log with Utilities

It is often better to only deactivate a matchcode ID. Unlike when a matchcode ID is deleted, the definition of the ID is kept in the ABAP Dictionary when an ID is