Error Codes

HTTP response code 503

503 - Integration Application Server was unavailable or Attempt to access Integration Application Server was unauthorized

Cause

This error has a few causes:

• Application server is offline or inaccessible (such as behind a firewall).

• API Key is incorrect.

Resolution

To resolve:

• Confirm that the application server which supports the project is online. In Saltbox, go to the “Manage Integration Engines” page to confirm the status of the “Cloud Engines” or (if applicable) “App Server on EC2”. If the engine or server is offline, attempt to restart it.

• Verify that the API key is correct.

  1. In Saltbox, go to Project Settings > API Gateway Settings.

  2. Use the quick-copy button to copy the API key automatically.

  3. Update the header’s X-Api-Key parameter with this new key.