ERR_NGROK_1966: The certificate ID could not be deleted because it has an attached Managed Certificate Policy - ngrok documentation

What does ERR_NGROK_1966 mean?

ngrok returns ERR_NGROK_1966 with this message:

The certificate <ID> could not be deleted because it has an attached Managed Certificate Policy. If this certificate is automatically generated, delete the domain reservation or use a different certificate type.

Troubleshoot ERR_NGROK_1966 with your AI agent. Connect it to the ngrok MCP server, then ask what caused the error and how to fix it.

Where can I get more help with ERR_NGROK_1966?

Email support@ngrok.com and include the error code.