Hi, I came across with the same issue. Option 1 is not efficient if we a lot of contacts like >200k. Option 2 is also not efficient when we have > 2k email campaigns. What would be helpful and more efficient if there's an endpoint with filter to return only contacts that were interacted such as opens, clicks,..etc, in a specific time range. For instance, we could send a request to ask any contacts that made any interactions from two days ago (updated_after parameter) and the response will include contacts' info, any campaign_activity_id associated with the contacts, and tracking_activities_list like "em_clicks", "em_opens", "em_bounces", and so on. This will help the integration much sufficient and faster. Is there any endpoints on CC we can find to do that? Thank you in advance.
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