Confirm your gateway and storefront requirements
Ask your provider whether the wallet is approved for your merchant account and which storefront plugin or integration version it supports. Identify every domain or subdomain where the button will appear. For example, Apple provides separate guidance for web domain verification and sandbox testing.
Test what the shopper and merchant see
- Check one supported device and one unsupported device, and confirm the existing checkout remains available.
- Run completion, cancellation, and any applicable shipping or tax changes in the approved test environment.
- Compare the final order amount and payment reference with the provider record. Verify the supported refund path.
Watch wallet-specific payment outcomes after launch
Track wallet visibility, completed attempts, and cases where the payment appears in the provider dashboard without the expected order update. Maintain a clear owner for checkout and provider support. Review domain or certificate changes using the wallet and gateway documentation.
Sources and further reading
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