This event disables the standard lock logic which uses the function module VIEW_ENQUEUE per subobject. You can use your own lock logic.
The variable VCL_ENQ_ACTION contains the lock operation to be performed:
E: Locks
D : Unlock
The variable VCL_ACTION contains the maintenance operation to be performed:
U: Change
S: Display
T: Transport
You can change the maintenance operation to be performed by changing VCL_ACTION. This is necessary, e.g. when the maintenance operation Change tries to access a locked object. Change VCL_ACTION to S.
Assigning SPACE to VCL_ACTION ends the maintenance dialog.