To ensure the best experience with using the ActiveCampaign APIs, please observe the following guidelines.

  • Use version 3 (v3) APIs whenever possible instead of v1.
  • If an error occurs, please pause or "sleep" execution for at least 1,000 milliseconds before resubmitting your API request.

We are actively working on improving our platform experience, adding new features, and improving performance. Following these guidelines will reduce intermittent errors and help us to provide a better experience for all customers.