BigCommerce Payment Gateway Review for Peptide Stores

Identify how payments reach the gateway

Determine whether your store uses BigCommerce’s storefront checkout or a custom checkout that calls the platform’s APIs. The supported payment path and required integration work depend on that choice. BigCommerce’s Payments API documentation identifies constraints for processing payments through an API-based checkout.

Review each storefront and payment flow

Record which storefront or channel owns the checkout, the currencies you use, and the provider configured for each. Verify the gateway can support the planned checkout and obtain an eligibility decision for the actual merchant business before estimating a go-live date.

For a custom storefront, trace checkout handoff end to end

Create a test cart in the same storefront channel the buyer uses. Confirm that checkout, payment attempt, and order all refer to that cart and the intended merchant configuration. Check how the developer and finance team can look up an interrupted attempt without changing the order manually.

Run a test through order and payment records

• Create a checkout in the planned storefront and complete a provider-supported test payment.
• Confirm the platform order has the correct payment status and provider reference.
• Exercise a declined payment, a refund, and the finance export.
• If your store has multiple storefronts, verify that the correct checkout and settings are used on each.