All Cielo codes
CIELO · RETURN CODE

Cielo
94

Duplicate tracing data value. For Mastercard, Cielo notes this code only takes effect on 10 Nov 2026.

Cielo saysIntegration issue
94

Duplicate tracing data value. For Mastercard, Cielo notes this code only takes effect on 10 Nov 2026.

What it means

Duplicate transaction

An identical payment was sent very recently, so this one was blocked.

What to do

Confirm whether the first one succeeded before sending again, and use unique order references.

Don't retry as-isWho can fix it: You, the merchant
Yuno response codeDUPLICATED_TRANSACTION
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.