How to fix the po_reqapproval_init1 api to automatically approve POs from requires re approval stage

Hi All,

I am facing an issue with po_reqapproval_init1  API to automatically approve POs after there is a change in the ship dates of line items by a program feed.

For example there is PO P1 created by buyer B. This Po is submitted to the supervisor and approved state.

Now there is a feed (concurrent program) which updates the promise date of po line items  and turns the PO into Requires Reapproval state. Since there is no monetary change , the buyer can approve it without sending it to the supervisor using front end po form.

The same thing we are trying to accomplish by using the "po_reqapproval_init1"  api start_wf_process (procedure) . Issue is that the PO does not get approved nor does the api send notification to the supervisor of buyer( ideally as per process on the front end , it should just simply approve )