Hi André, you’re absolutely right about that.
Master Data V1 refers to the version that has a front-end available, while Master Data V2 does not have a graphical interface, as outlined in our documentation:
However, I checked with the responsible team, and the answer I previously sent you is correct. The Orders entity has been deprecated for Master Data V1 as well, meaning that with this change, the orders database is stored only in the OMS. For this reason, the best option would be to use the orders hook.
We have a topic here discussing how Feed and/or Hook configuration should be set up:
Karina Mota
Field Software Engineer | VTEX