ERR_NGROK_1029: Your invoice billing address postal code is too long: VAL bytes

What does ERR_NGROK_1029 mean?

ngrok returns ERR_NGROK_1029 with this message:

Your invoice billing address postal code is too long: <VAL> bytes. Max: <MAX>

Troubleshoot ERR_NGROK_1029 with your AI agent. Connect it to the ngrok MCP server, then ask what caused the error and how to fix it.

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