Start the first order from the Clover Customers app, customer record - Upon the first transaction, the card is linked to the customer's phone number and subsequent transactions do not require any entry.
For cash transactions or when using a different card, start the order from the Clover Customers app, so the transaction is linked to the phone # listed in the customer's record, UMarket will automatically detect if the phone is an existing customer/phone number and accrue towards their rewards.