# FUNCTION_RESPONSE_PAYLOAD_TOO_LARGE

The `FUNCTION_RESPONSE_PAYLOAD_TOO_LARGE` error occurs when the function returned a response that exceeds the maximum allowed size of 4.5 MB.

## Troubleshoot

To troubleshoot this error, follow these steps:

1. **Review response payload size:** Check the size of the response payload being returned by the function to ensure it's within the allowed limits, and does not exceed the [limit of 4.5 MB](/docs/functions/runtimes#size-limits)
2. **Reduce response payload size:** If possible, reduce the size of the response payload being returned by the function


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title: "FUNCTION_THROTTLED"
description: "The function you are trying to call has exceeded the rate limit."
last_updated: "2026-02-03T02:58:41.757Z"
source: "https://vercel.com/docs/errors/FUNCTION_THROTTLED"
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