Delete overlap request in bw 7.0

Hi,
Pls create a process chain.
1. Add Delete Overlapping Requests from InfoCube .
2. In the deletion selection check : Conditions:
mark : Only delete request from same DTP
Only delete full DTP request
Only delete full DTP request from Same source
Then Mark : Overalapping.

In the DTP : Add date in the Filter .(Cal/Year Mth) ..You can use variable also.
Without this it won't work.

According to our developer, please note:
It is not supported to use the 'overlapping deletion process' with
DTP-Requests. It will not work and is not nessessary anymore.