Commercial Bank Merchant IPG • Australia
Westpac PayWay Integration
Direct acquiring bridge connecting Westpac PayWay\'s merchant portal and internet payment gateway into your store or application.
Underlying Engine: Proprietary In-HouseAPI: PayWay REST API / Hosted Card Capture
Bank Gateway Specialist
Have Westpac PayWay Credentials?
Connect with our payment developer to review your bank credentials and API manual.
Or Request Fixed-Price Scope ↓Bank Architecture & Integration Scope
Westpac PayWay is one of Australia's most established corporate and commercial acquiring solutions. PayWay REST API allows secure credit card tokenization, direct debit, and Apple Pay.
Technical Specifications & Protocols
| Core Gateway Engine | Proprietary In-House |
| Integration Options | PayWay Credit Card API • Hosted Tokenizer • Bank Account Direct Debit |
| Callback & Signature Security | HMAC Webhook Signature |
| Currency Support | AUD (Australian Dollar) |
| Merchant Settlement Cycle | Next-business-day funding to Westpac account |
| 3DS2 Authentication | ✅ Full EMV 3-D Secure 2.x Frictionless & Challenge Support |
Prerequisites Required From Westpac PayWay
1PayWay Merchant ID and Bank Account Linkage
2Publishable and Secret API Keys from PayWay Portal
3Compliance with Australian Privacy Principles
Bank UAT Sign-Off & Live Launch Protocol
Most commercial banks mandate a completed User Acceptance Testing (UAT) sign-off sheet before they generate live production API credentials. We handle this process completely for you:
- Executing successful 3DS authorization with bank test cards
- Simulating bank card declines (insufficient funds, expired card, blocked BIN)
- Simulating canceled checkout sessions and back-button handling
- Verifying webhook server-to-server callback response (HTTP 200 with valid signature)
- Executing test refund transaction in bank test portal
- Submitting proof of transactions to the bank\'s technical onboarding desk
Westpac PayWay Project Scope
We develop custom plugins for WooCommerce, Laravel, Magento, and bespoke custom applications directly for Westpac PayWay.
Delivery in 3 - 5 business days
PCI-DSS SAQ A scope architecture
Client live connection verification
Free Architectural Review
Request Custom Integration Scope
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