Constant Contact incident

V3 API Access Token Issue

Major Resolved View vendor source →

Constant Contact experienced a major incident on April 30, 2025 affecting API's and Integrations, lasting 13h 8m. The incident has been resolved; the full update timeline is below.

Started
Apr 30, 2025, 02:30 AM UTC
Resolved
Apr 30, 2025, 03:38 PM UTC
Duration
13h 8m
Detected by Pingoru
Apr 30, 2025, 02:30 AM UTC

Affected components

API's and Integrations

Update timeline

  1. investigating Apr 30, 2025, 03:13 PM UTC

    We are experiencing an issue with generating new access tokens. Requests to obtain tokens for our V3 API are currently returning HTTP 400, with the errorSummary "Bad request. Accept and/or Content-Type headers likely do not match supported values." Existing tokens are not affected. Our engineers are aware of this issue and working to resolve it as quickly as possible

  2. resolved Apr 30, 2025, 03:51 PM UTC

    The root cause of this issue has been identified and resolved. Token generation function has been restored.