You can manage customer records in the Customers section of the admin panel.
Please note: deleting customer (buyer) data on the site is available only to the administrator with the owner role.
You can only delete a customer who has no orders. So, first, go to the Orders section and delete all the customer's orders.
If a customer has no orders, a delete (trash bin) icon will appear next to their record in the general table. To delete a customer, click the icon and confirm the action.