Hi @Jman ,
I did a little digging with colleagues and the discrepancy comes from these being past occurrences of a recurring meeting and that the uuid changes after the meeting ends. The list ended meetings endpoint is not returning the new uuid after meeting has occurred. Given this, when you pass in the old uuid, it will say the meeting does not exist. We can definitely improve our documentation here, but please reference this comment for suggested path to getting those specific past meeting instances: Meeting ID versus UUID Confusion - #6 by tommy