Draft Purchase Order - Rest API Questions

Summary

Draft Purchase Order - Rest API Questions

Content

Hello,

I have a couple of questions regarding the Draft Purchase Order Rest APIs:

1. What exactly is a Draft Purchase Order? 

2. Is a Draft Purchase Order an "unapproved purchase order"?  Once it is approved, is it no longer accessible via the Draft Purchase Order Rest APIs?

3. I am unable to update a Purchase Order that has been approved.  I am using the Update Draft Purchase Order Rest API since there is no Update Rest API for standard purchase orders.

Thanks,

Steve

Version

20D soon to be 21A