All Mercado Pago codes
MERCADO PAGO · STATUS_DETAIL

Mercado Pago
invalid_installments

Orders API: failed because the selected number of installments is not accepted by the issuer or the system.

Mercado Pago saysIntegration issue
invalid_installments

Orders API: failed because the selected number of installments is not accepted by the issuer or the system.

What it means

Not supported

The card, method or account does not support this feature or type of transaction.

What to do

Check that the feature is enabled and supported for this card type and provider.

Don't retry as-isWho can fix it: You, the merchant
Yuno response codeUNSUPPORTED_OPERATION
Source:Mercado Pago docs — Checkout API (Orders): Transaction status

Other Mercado Pago codes with the same meaning

cc_rejected_invalid_installments

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.