All Cielo codes
CIELO · RETURN CODE

Cielo
30

Message format error (Elo, Mastercard). Mastercard also uses it for a problem at the acquirer.

Cielo saysIntegration issue
30

Message format error (Elo, Mastercard). Mastercard also uses it for a problem at the acquirer.

What it means

Invalid transaction

The operation is not valid in this state, for example capturing twice or refunding more than was paid.

What to do

Check the payment's current state and the order of your API calls.

Don't retry as-isWho can fix it: You, the merchant
Yuno response codeINVALID_TRANSACTION
Source:Cielo docs — Códigos de Retorno padrão ABECS (API E-commerce Cielo)

Other Cielo codes with the same meaning

222472767780C3EBFE

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.