ERR_NGROK_601: This credential is your tunnel token and cannot be deleted, only rotated - ngrok documentation

What does ERR_NGROK_601 mean?

ngrok returns ERR_NGROK_601 with this message:

This credential is your tunnel token and cannot be deleted, only rotated.

Credential ID: <ID>
Description: <DESCRIPTION>

Troubleshoot ERR_NGROK_601 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_601?

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