{"section":"known-issues","requestedLocale":"en","requestedSlug":"missing-minicartbuyerid-field-causes-antifraud-to-cancel-transactions","locale":"en","slug":"missing-minicartbuyerid-field-causes-antifraud-to-cancel-transactions","path":"docs/en/known-issues/Payments/missing-minicartbuyerid-field-causes-antifraud-to-cancel-transactions.md","branch":"main","content":"## Summary\n\n\nThere have been instances where certain transactions are being declined during the anti-fraud analysis due to the null value in the `minicart.buyer.id` field. Thus, the `minicart.buyer.id` is expected to be sent from the checkout to the gateway through `sendAdditionalData`. However, according to the current checkout architecture, there is no specific requirement to provide this field in `sendAdditionalData`, and its definition may or may not be available at a later stage.\n\n\n#### Simulation\n\n\nIt's not possible to reproduce this behavior once this is intermittent.\n\n\n#### Workaround\n\n\nIt is possible to send the additional data afterward through our API:\nhttps://developers.vtex.com/docs/api-reference/payments-gateway-api#post-/api/pvt/transactions/-transactionId-/additional-data"}