Confirmation Delete Workflow

Hello all,

I was wondering if we can trigger a workflow approval when a Confirmation is Deleted (reversed) in SRM 4.0 (Classic Scenario).

The scenario is:

1) A desktop receiver performs confirmation.

2) No approval is required. So, a Goods Receipt is generated in R/3.

3) Due to some reason the receiver needs to reverse the GR. So, he/she selects "Delete" to cancel (reverse) the previous confirmation/GR.

4) This cancellation (reversal) needs to be approved by a Role (central Receiver) before it goes through to R/3.

Steps 1, 2 and 3 are standard SRM. Has anyone acheived step 4? Or know how to do it? Please help!

Thank you,

Kindest Regards,

Hari.