If 3DS sits inside your PSP integration, failover will always be fragile.
The core issue is architectural. In most setups, the processor runs 3DS, manages the challenge flow, and attaches the authentication result to its own authorization request. That authentication event is generated and stored within the PSP’s environment. It’s not portable.
So when a transaction is soft-declined after 3DS has already been completed and your orchestration logic attempts to retry through a secondary PSP, the second processor has no record of the authentication. From its perspective, the transaction has not satisfied SCA. The only option is to challenge the customer again.
This is why many merchants see higher abandonment on retried transactions than on first attempts. The retry introduces friction that was not visible in the original flow.
Own your authentication layer to make failover invisible with Primer
The difference between visible failover and invisible failover is who owns 3DS.
If authentication is owned by the PSP, it cannot move independently of that PSP. If authentication is owned at the orchestration layer, it can travel with the transaction regardless of which processor ultimately submits the authorization.
A solution like Primer decouples 3DS from any single processor. Authentication runs at the orchestration layer, not inside the PSP integration. When a customer completes 3DS and the primary processor returns a soft decline, Primer can retry the authorization with a secondary processor while carrying the original authentication data.
The customer doesn’t see a second challenge. The authentication event is reused. The retry behaves like infrastructure, not a new checkout.
Primer supports multiple 3DS providers and can route authentication between them if needed. If a 3DS provider experiences downtime, authentication can be redirected without disrupting the payment flow.
If you are running multiple PSPs, book a demo to see how Primer centralizes 3DS and keeps authentication consistent across every processor in your stack.
FAQs
Why does 3DS usually fail during PSP failover?
In most integrations, 3DS is executed and stored inside the PSP’s environment. When a transaction is retried through a secondary processor, that processor has no access to the original authentication result. As a result, the customer must complete 3DS again, increasing friction and abandonment.
Can 3DS authentication results be reused across processors?
Only if 3DS is decoupled from the PSP. When authentication runs at the orchestration layer instead of inside a specific processor, the authentication result can travel with the transaction and be reused during failover. If 3DS is PSP-owned, it cannot be ported to another provider.
Does decoupling 3DS affect PSD2 and SCA compliance?
No. In fact, centralizing 3DS at the orchestration layer can improve compliance control. Merchants can apply consistent authentication policies across all processors, manage exemptions centrally, and ensure Strong Customer Authentication requirements are satisfied regardless of which PSP ultimately submits the authorization.
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