ERR_NGROK_6601: Failed to add USER_NAME as a member of account ACCOUNT_NAME because they are already a member - ngrok documentation

What does ERR_NGROK_6601 mean?

ngrok returns ERR_NGROK_6601 with this message:

Failed to add <USER_NAME> as a member of account <ACCOUNT_NAME> because they are already a member.

Troubleshoot ERR_NGROK_6601 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_6601?

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