We have had an integration running since April 2021 which creates orders via the API. The orders we are creating have been placed in a 3rd party system the previous day, so we need to be able to set the order date to the correct sale date for accounting purposes.
Our POST to the /orders endpoint includes a created_at value, which was working (i.e. it set the order date as expected) up until 18th May 2021. From the 19th May 2021 it stopped working (our code did not change).
Is there another field we should set to ensure our orders are created with the correct sale date?