Starting on 16 July 2020, submitting a bulk order request that contains duplicate
clOrdIDs will no longer be allowed. This update to bulk order request handling matches how single order requests are handled (they require a unique
clOrdID per order).
From 16th July 2020, bulk order requests that contain duplicate
clOrdIDs will be rejected with the message: “Duplicate clOrdID”.
This functionality update is part of the ongoing simplification of our API. If you have any further questions, please contact Support.