# INTERNAL_FUNCTION_NOT_FOUND

The `INTERNAL_FUNCTION_NOT_FOUND` error occurs when an attempt to invoke a function fails because the function could not be found. This could happen if the function was not properly deployed, or if there is a misconfiguration in the function's settings or environment.

## Troubleshoot

To troubleshoot this error, follow these steps:

1. **Verify function deployment:** Ensure that the function has been successfully deployed and is available in the environment where it is being invoked
2. **Check function name:** Verify that the function name being used in the invocation matches the deployed function name
3. **Review configuration:** Check the function configuration in your project, including the function file name and the path where it is located
4. **Check for typos:** Ensure that there are no typos or incorrect references in the function name or in the invocation command


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title: "INTERNAL_FUNCTION_NOT_READY"
description: "The internal function is not ready to be invoked. This is a Vercel error."
last_updated: "2026-02-03T02:58:41.882Z"
source: "https://vercel.com/docs/errors/INTERNAL_FUNCTION_NOT_READY"
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