Welcome to the Android Pay Merchant Help CenterAndroid Pay overviewIntroducing Android PayPayment securityTransaction feesTerminologyAccepting Android Pay in storesIn-store customer experienceNFC payment flowGetting ready for Android PayLetting customers know you accept Android PayAccepting Android Pay within appsIn-app customer experienceSubmit your Android Pay enabled APKUpgrading from Google Wallet to Android PayEnabling loyalty cards, gift cards, and offers with the Save to Android Pay APIThe Save to Android Pay APISaving Cards with the Save to Android Pay APIThe Save to Android Pay Merchant CenterGift card balance updateAccepting loyalty cards, gift cards, and offers in storesShow and scanNFC redemptionTerms of service and content policiesAndroid Pay API terms of serviceAndroid Pay API content policySave to Android Pay API terms of serviceCompare Android Pay API and In-App BillingRefunds, returns, fraudulent charges, and chargebacksRefunds and returnsFraudulent transactions and chargebacksTroubleshootIssues when purchasing in stores