What happens if a customer signs up for multiple accounts with different emails but the same phone number?

Customers are linked to their account based on their email address. Recharge checks the customer’s email address at checkout against the ecommerce platform’s customer profile records. If a customer profile does not exist, a new customer profile is created and can result in a customer having multiple accounts with different emails. Refer to Customer cannot log into their account for troubleshooting login issues and Can I merge customer accounts in Shopify? for more information.

Phone numbers must be unique across customers in your store.

If a number is already in use at checkout, the new customer record is created without a phone number. If the phone number is new to your store, it’s saved to the new customer record created when a customer checks out.

Customers see a message directing them to contact your store’s support team if they attempt to update their phone number in the customer portal and it is already in use.

You see a more detailed message in the merchant portal, guiding you to look up the number and decide whether to adjust records.