All Cielo codes
CIELO · RETURN CODE

Cielo
AF

Transaction not permitted: operation failure (processing error). Have the cardholder re-enter the card data.

Cielo saysSoft decline
AF

Transaction not permitted: operation failure (processing error). Have the cardholder re-enter the card data.

What it means

Provider error

Something failed on the provider's side. It says nothing about the card.

What to do

Retry with backoff or fail over to another provider. Check the provider's status page if it persists.

Worth retryingWho can fix it: The provider
Yuno response codePROVIDER_INTERNAL_ERROR
Source:Cielo docs — Códigos de Retorno padrão ABECS (API E-commerce Cielo)

Other Cielo codes with the same meaning

19859096AGBDBOBP900BP901BP902BP903BP904

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.