API access only returns your own campaigns

If you connect Zapier or call the API, the key only sees campaigns on your account. Asking for someone else’s campaign id comes back as not found. A missing or bad key is rejected before any data is returned. Bad ids and bad JSON should get a normal client error, not a server error. If a call fails, check the key first, then the id. Use this for your own participants and campaigns. It is not a way to read another member’s list.