What types of transactions should be tested?

The main transactions to test after a Shopify migration include:

• Successful purchases – Verify the complete checkout and order process.
• Credit/debit card payments – Confirm payment authorization and order creation.
• Alternative payment methods – Test options such as wallets or local payment methods.
• Refunds and cancellations – Ensure refunds are processed correctly and inventory updates properly.
• Discounted orders – Test discount codes, automatic discounts, and promotional offers.
• Gift card transactions – Verify gift card redemption and balance updates.
• Shipping and taxes – Confirm correct rates and calculations at checkout.
• Failed or declined payments – Ensure appropriate error messages and order handling.
• Partial payments or payment adjustments – Where supported, verify that these are recorded correctly.
• POS transactions – If Shopify POS is used, test in-person sales, returns, and payment processing.

Testing these scenarios helps identify checkout, payment, inventory, tax, and fulfillment problems before the migrated store goes live.