DField SolutionsMérnöki stúdió · Budapest
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CASE STUDIES · ecommerce

Dual-gateway payments for a HU marketplace · zero lost tx in 6 months

Unified Stripe Connect + SimplePay under one payment abstraction for a Hungarian B2B marketplace. Zero lost transactions in 6 months; automatic failover when either gateway had an incident.

Timeline9 weeks
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01Zero lost transactions in 6 months.
02Automatic failover engaged 4 times (gateway outages) · no customer impact.
03 / Reconciliation discrepancy rate0.002% (all resolved within 24h).
04 / Seller onboarding latency (SimplePay)3 days → 4 hours.
The problem01 / 03
  • 01Stripe alone didn't cover HUF-first retail sellers who required SimplePay.
  • 02SimplePay alone didn't offer cross-border SCA / Stripe Connect-like seller onboarding.
  • 03Manual reconciliation between two gateways was error-prone.
  • 04Any gateway outage = lost orders. A dual-gateway setup added race-condition risk.
The solution02 / 03
  • 01Payment abstraction layer · one interface, two drivers (Stripe + SimplePay).
  • 02Temporal workflow for each payment · survives restarts, handles idempotency.
  • 03Automatic failover when the primary gateway returns >5% 5xx in 60s.
  • 04Reconciliation job runs hourly · flags any divergence between gateways + ledger.
The outcome03 / 03
  • 01Zero lost transactions in 6 months.
  • 02Automatic failover engaged 4 times (gateway outages) · no customer impact.
  • 03Reconciliation discrepancy rate: 0.002% (all resolved within 24h).
  • 04Seller onboarding latency (SimplePay): 3 days → 4 hours.
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