How to mass update payment terms on approved purchase order headers via REST/SOAP APIs?

Summary: We are planning to update the payment terms on the approved PO headers.

Content (required): We have to update approved (Open) PO headers via REST/SOAP APIs. Which API we can use? We prefer to use REST API but SOAP is also fine for us.

Version (include the version you are using, if applicable): 23C (11.13.23.07.0)

Code Snippet (add any code snippets that support your topic, if applicable): N/A