All Cielo codes

CIELO · RETURN CODE

Cielo
002

Invalid credentials

Cielo saysIntegration issue

002

Invalid credentials

What it means

Invalid credentials

The provider rejected the API keys or account credentials.

What to do

Check keys, environment (test or live) and account permissions.

Don't retry as-isWho can fix it: You, the merchant

Yuno response codePROVIDER_INVALID_CREDENTIALS

Source:Cielo docs — Códigos de Retorno padrão ABECS (API E-commerce Cielo)

Reference only. Codes and descriptions come from each provider's public documentation. The Yuno response code is a reference mapping and does not guarantee how a specific transaction is processed.