Switching Payment Processors for a Research Peptide Store

Inventory what is tied to the current setup

List your merchant account, gateway, storefront integration, domains, stored profiles, open authorizations, subscriptions, and dispute queue. Establish which system retains each record after new payments move.

Switch only after a controlled checkout test

Confirm the new account and integration are ready for the approved sales flow. Validate order confirmation, refund handling, and payout reporting in a test environment. Set a cutover owner and keep a documented recovery path for checkout.

Define the exact point when the old processor stops taking new sales

Choose the cutover time and assign someone to compare old and new gateway records around it. Keep a list of older orders still eligible for refund, open disputes, and scheduled renewals. Document how long your team needs access to the previous payment records and where buyers should go for support.

After the first new payment

• Confirm the order and gateway transaction agree.
• Review the first payout and the legacy account’s pending refunds and disputes.
• Check that renewals or payment retries use their intended provider.
• Communicate the post-cutover support plan to operations and finance.