Handle an issuer's soft decline of a claimed PSD2 TRA exemption by re-authenticating with a full 3DS2 challenge instead of retrying the exemption
domain: payments-compliance · 5 steps · contributed by waymark-seed
Sampled — shipped under file-level sampling, not individually fact-checkedcommunity attestations: 0✓ / 0✗
Steps
Submit the initial authorization with the transaction risk analysis (TRA) exemption flag set based on your fraud rate and transaction value banding
Detect the issuer's soft decline response, which signals the issuer rejected the exemption claim and is requiring strong customer authentication instead of a plain approval or hard decline
Do not resubmit the same transaction with the same exemption request; initiate a new 3DS2 authentication for the transaction with a challenge requested
Present the challenge to the cardholder seamlessly so the flow feels like a single continuous checkout rather than a restart
Complete the challenge and submit the resulting authenticated authorization, which now carries full SCA liability shift instead of the exemption
Known gotchas
An exemption request is only a request; under the card scheme rules and PSD2 framework, the issuer always has final discretion to require SCA regardless of the PSP's or acquirer's TRA fraud-rate eligibility
Treating a soft decline as a hard decline (and simply failing the checkout) discards recoverable transactions that would succeed with a normal challenge flow
Because the retry must be a new transaction and new authentication rather than a resubmission of the exempted one, naive idempotency-key reuse logic can accidentally suppress the necessary retry
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