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Help & Feedback

Reach out when you hit an integration issue, find a docs gap, or need help with authentication, sending, domains, webhooks, usage, or billing.

Contact us at:

ctctforagentshelp@constantcontact.com

Include this context

  • The environment base URL you called, without secrets.
  • The endpoint path and HTTP method.
  • The response request_id from any error response.
  • Whether the request was made from a server-side runtime.

Useful links

Quickstart Send your first transactional email with raw HTTP. Error Codes Understand the public API error envelope and recovery steps. API Reference OpenAPI-backed endpoint and schema details. OpenAPI YAML Download the source contract for client generation and validation.