Hello @JMK , This response is a standard to share data from AAM to AA.Dests parameter will be present whenever there is any URL destination being returned based on the AA request data set. As per my knowledge, HR is used for numbering the calls and ID is to show the IDs that have been synced with 3rd party data partner along with the timestamp parameter. Again, these are for internal purposes/usages. As per your query, you are debugging URL destinations, so is there any particular issue/scenario...

@JMK not sure about the 'hr' one and whether or not it always has a '1' value but I believe it might be short forHttpResponseThat particular extract you provided is about URL destinations. As for the rest: idDestination IDcDestination URLyDestination TypettlTime to Live From what I can see in my tests, some of these IDs can be dedicated partner IDs we have in our backend tools, not necessarily something you can cross-check from the UI.