Subscription service · Europe

Payment gateway with deposits and auto-reconciliation

A subscription service needed reliable card payments with deposits and automatic status reconciliation. The brief: integrate a payment gateway with webhooks, deposits and self-healing status checks.

Scope: Payments integration Stack: PHP · Gateway API · Webhooks Timeline: 3 weeks
payments · gateway
updated today
Payment success
98.7%
with retries
Deposit option
50%
adopted
Manual reconciliation
−100%
automated
Settlement check
2s
webhook

Weekly payments processed

€ thousands

Payment status

share of transactions

◆ Findings
  • Payment failures dropped orders with no retry path.
  • Reconciling payments to invoices was a manual, error-prone chore.
  • There was no clean way to take a partial deposit up front.
✓ What we did
  • Built hosted card checkout with 50% deposit and full-payment flows.
  • Added webhook handling with automatic status reconciliation.
  • Shipped receipts, refunds and a live payments dashboard.

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