Thank you for reaching out to the Zoom Developer Forum. This is a topic that we’ve covered in a previous post, linked below. Essentially, there isn’t a good relationship between an occurrence_id and the UUID that is assigned to a meeting when it is scheduled. I understand there is a need for this, and we have reached out to our engineering team, but it seems the best option is to use timestamps if your use-case requires that you map occurrence_ids to UUIDS.