Unlike what you thus far know from the ABAP Debugger, you must first activate the AMDP Debugger in an ABAP project before using it. This means that you must activate the AMDP Debugger before you can stop the execution of a database procedure, perform stepping, or inspect variable values.
The debugger activation can be operated in two ways:A message informs you that the AMDP Debugger has been activated. This activation enables AMDP debugging within the current ABAP project.
To check the (new) activation status, open the Debugview.