# E04000 — EmailBatchRequestTooLarge

Batch request body exceeds the 20 MB cap.

- **HTTP status**: `413`
- **Type**: `payload_too_large_error`
- **Name**: `EmailBatchRequestTooLarge`

## What to do

The request body exceeds the maximum allowed size. Reduce the request body (smaller attachments, fewer items per call) and retry. Batch endpoints accept multiple smaller requests.

## Related

- [E04xxx — Email sending & delivery](/docs/api/errors/E04xxx): every code in this range
- [Errors](/docs/api/errors): the full wire contract, status mapping, and error catalog
- [Error handling](/docs/guides/errors): branching on `type` and `code`, validation details, and `vendor_code`