FM to delete ASSIGNMENT for HU from Inbound Delivery(VL32N)

Hi Experts,

Greetings for the day...

Presently I have a requirement.

I need to unpack HU and delete HU's Assignment from the inbound delivery(VL32N).

After deleting the assignment from VL32N, I should be able to view it in tcodes : HUMO and HU02.

For deleting assignment presently I'm using FM : BAPI_HU_DELETE_FROM_DEL.(which is actually deleting the entire HU instead of deleting it's assignment)

But when I goto tcodes : HUMO and HU02,

the deleted HU is not visible.

I have debugged the standard process and found some more FM's : V51P_DELETE_RELATIONSHIP and V51F_HU_BREAKUP.

And tried using it, but not successful.

Kindly provide me more some inputs.

Please respond ASAP.

Thnks,

sasi.