Migrate a crypto gateway by creating a controlled boundary between old and new orders. Preserve the provider and invoice identifier for each order, test the new receipt and fulfillment path, then switch new checkout creation. Existing blockchain transfers and pending invoices do not move automatically to the new service.
Inventory the payment paths before switching
List every place your business creates payment requests: store checkout, emailed invoices, mobile apps, renewals and manual support links. Document which service owns each pending invoice and which webhook receiver or polling job updates its state. Retain the old provider reference alongside the order.
For example, a hypothetical store can route orders created before a chosen cutover time to its existing integration while new orders use Coinvay. Do not assume a Coinvay API key or transaction-hash endpoint can authenticate or settle an invoice issued by a different gateway.
Validate the new integration with concrete evidence
Configure the receiving wallet and enabled asset-network combinations in the new account. Confirm prices on the backend, protect API credentials and make order fulfillment idempotent. Test expired quotes and duplicate notifications as well as the successful path.
Coinvay’s sandbox provides preview and Base Sepolia ETH or USDC testing with separate records. It is not a universal simulation of every production chain or store plugin. After that test, plan any necessary user-approved live validation for the exact asset, network and commerce platform you will actually launch.
Keep pending orders observable after cutover
Leave the old payment-status path operational for pending invoices, subject to the provider’s actual access and retention rules. A customer may open an old email after the new gateway is live. Decide whether to honor that invoice or issue a clearly identified replacement without risking duplicate fulfillment.
Switch new invoice creation in a reversible release and monitor the first transactions. Keep a support procedure for a customer who pays the previous address or provider. Finally, reconcile receipts across both systems before removing old integrations; migrating checkout does not move funds out of an old custodial account or replace wallet backups.
Practical checklist
- Store the provider and invoice ID on every order.
- Test new payment and fulfillment failures before cutover.
- Monitor existing invoices through their original provider.
- Reconcile both systems before retiring old credentials.
Common questions
Can I reuse all old payment links after migrating?+
Old links still belong to the system that issued them. Review their validity and communicate replacements clearly rather than assuming a new gateway will process them.
Can I test every existing integration using a Coinvay live API key in Sandbox?+
No. Coinvay Sandbox uses interactive management and separate public test-checkout routes. The current flow does not accept live merchant API keys as test credentials.
Sources and further reading
Primary references and Coinvay product documentation. Check the linked pages for current details.
- Coinvay API documentation
- Coinvay integration packages and setup boundaries
- Coinvay testnet sandbox guide
AI-assisted drafting, published by Coinvay. Examples are illustrative. Read our editorial approach.