DGII 51 — Buyer details required for this type

Datos del comprador requeridos para este tipo

Field	Value
DGII code	51
Category	Validation
HTTP status	422
Retryable	No
Tenant fixable	Yes
Problem.type	https://errors.api.erply.pro/dgii-51-comprador-requerido

Probable cause

The document type requires buyer information (e.g. type 31 Tax Credit) and the request does not include it.

How to fix

• For types 31 (Tax Credit), 41 (Purchases) and 44 (Special Regime) the buyer information is mandatory.

Example application/problem+json response

{
  "type": "https://errors.api.erply.pro/dgii-51-comprador-requerido",
  "title": "Buyer details required for this type",
  "status": 422,
  "detail": "DGII code 51: Buyer details required for this type",
  "instance": "/v1/invoices",
  "correlationId": "1-65fa7c3a-6f9c2d8e0a1b2c3d4e5f6789",
  "dgii": {
    "code": "51",
    "trackId": "20260501-DGII-9988"
  }
}

Source

DGII PSFE Technical Spec + Norma 06-04. Exact citation pending review by the compliance specialist.