All Mercado Pago codes
MERCADO PAGO · STATUS_DETAIL

Mercado Pago
processing_error

Orders API: failed because of a processing error (technical problem or system error).

Mercado Pago saysSoft decline
processing_error

Orders API: failed because of a processing error (technical problem or system error).

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:Mercado Pago docs — Checkout API (Orders): Transaction status

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.