DATA_TOO_LARGE

The transaction data field is larger than self-serve accounts may send.

HTTP status	422
Group	Relay path
Retryable	No — sending it again changes nothing
Re-sign	NONE — do not ask the user to sign anything

What happened

Data bytes are paid for per byte by the relayer, so the size is capped for every self-serve account.

What to do

Shrink the payload. Larger payloads and contract deployments need an account allow-list entry — contact support.

Extra members

This code carries limit, actual in the problem document, on top of the common members.

The problem document

Every error is application/problem+json (RFC 9457) with the same shape:

{
  "type": "https://docs.co-relayer.com/errors/data-too-large",
  "title": "The transaction data field is larger than self-serve accounts may send.",
  "status": 422,
  "detail": "A sentence about this specific occurrence.",
  "instance": "req_01JB…",
  "code": "DATA_TOO_LARGE",
  "retryable": false,
  "resign": "NONE",
  "hint": "Shrink the payload. Larger payloads and contract deployments need an account allow-list entry — contact support."
}

See the error model for what each member means and how to handle unknown codes.