In SAP 8.82 PL06, PO,if added thru diapi, does not trigger approval process

Hi,

I have SAP 8.82 PL06.

I have set up PO approval process.

I am generating PO through DIapi.

This PO does not triggers PO approval process.

It directly gets added to system.

The PO should go for approval if PO amount > 0.

That is I am using one of the system predefined conditions to trigger PO approval.

ALL help is appreciated

Regards

Trupti Mahurkar