Hello @shaebert , When you go to Marketing > Campaigns and then select your campaign, the HubSpot Campaign Id is the sequence after "campaigns/". Here is what it might look like: 1ee7c873-885d-45f6-9e33-b32104883176
Looking for this answer as well. I'm onboarding a vendor and will be using it in HubSpot and need the Campaign ID #. This hasn't been easy to find and I'm not a developer.