Resolving "event submission rejected with_reason: ProjectId" 403 Error

Issue

Events are failing to reach Sentry. Network response includes error message "event submission rejected with_reason: ProjectId".

Applies To

• All Sentry Users

Symptoms

• Users are noticing a failure in event submission to Sentry, accompanied by the following error messages in the Network responses:
  • Request failed, API returned 403
  • {"detail":"event submission rejected with_reason: ProjectId"}
  • The transport failed to send the envelope with response code 403

Resolution

This error typically points to a situation where the project is incompletely created on the backend, often resolving itself after a few hours. The underlying cause may involve incorrect DSNs or DSNs still undergoing processing.

 

• Wait for Backend Processing: The error may resolve itself after a few hours as backend processes complete the project setup.
• Verify DSNs: Ensure correct and properly configured DSNs
• Direct DSN Initialization: If the issue persists with a new project, consider specifying the DSN string directly in the initialization if using a dynamic variable
  • • Dsn = "Sentry dsn as printed out";