When AuthorizeNet returns decline code 27, it means: avs mismatch — address verification failed. This is classified as a authentication in the Verification subcategory. This type of decline usually requires direct customer action to resolve.
LostChurn triggers a verification flow, sending the customer a secure link to complete identity verification or 3DS authentication. We optimize the verification UX for mobile devices where most failures occur.
Send the customer a 3DS/SCA authentication link immediately. Retry after successful authentication. If not completed within 72 hours, send a reminder. Maximum 0 authentication attempts before escalating to manual outreach.
approve_with_idStripePayment cannot be authorized — customer must contact issuercall_issuerStripeCustomer must contact card issuerCREDIT_CARD_CVV_CHECK_FAILEDPayPalCredit card CVV verification failedADDRESS_MISMATCHPayPalBilling address mismatch44AuthorizeNetCVV mismatch — card verification value mismatchLostChurn detects 27 declines in real time and applies the optimal recovery strategy — no manual intervention needed.