REST API Call for PO update
We would like to do the following using REST API on a Purchase Order. Could you please let me know the REST API calls for these actions?
1. Deobligation/ reduce funding to an existing PO
2. Add additional line to an existing PO
3. Add more funds or increase the quantity/cost to an existing PO
Could someone please give me the REST API links for these actions? I could not find it in the REST API documents. We are in 21B version