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Take your integration live

[Step 7 of 7] In this step, you will update your integration to use production values and review a pre-launch checklist. At the end of this step, you will be able to process live transactions.

1. Update publicKeyId

In the button integration code, replace publicKeyId with your Live API public Key ID. Repeat the get your public key ID instructions to generate the Live public Key ID. Be sure to select the "Production" option from the "Marketplace switcher" drop-down in step 2.

<script type="text/javascript" charset="utf-8">
    amazon.Pay.renderButton('#AmazonPayButton', {
        // set checkout environment
        merchantId: 'merchant_id',
        publicKeyId: 'LIVE-xxxxxxxxxx',
        ledgerCurrency: 'USD',            
        // customize the buyer experience
        checkoutLanguage: 'en_US',
        productType: 'SignInAndSetup',
        placement: 'Cart',
        buttonColor: 'Gold',
        // configure Create Checkout Session request
        createCheckoutSessionConfig: {                     
            payloadJSON: 'payload',
            signature: 'xxxx',
            algorithm: 'AMZN-PAY-RSASSA-PSS-V2'
        }   
    });
</script>

<script type="text/javascript" charset="utf-8">
    amazon.Pay.renderButton('#AmazonPayButton', {
        // set checkout environment
        merchantId: 'merchant_id',
        publicKeyId: 'LIVE-xxxxxxxxxx',
        ledgerCurrency: 'EUR',            
        // customize the buyer experience
        checkoutLanguage: 'en_GB',
        productType: 'SignInAndSetup',
        placement: 'Cart',
        buttonColor: 'Gold',
        // configure Create Checkout Session request
        createCheckoutSessionConfig: {                     
            payloadJSON: 'payload',
            signature: 'xxxx',
            algorithm: 'AMZN-PAY-RSASSA-PSS-V2'
        }   
    });
</script>

<script type="text/javascript" charset="utf-8">
    amazon.Pay.renderButton('#AmazonPayButton', {
        // set checkout environment
        merchantId: 'merchant_id',
        publicKeyId: 'LIVE-xxxxxxxxxx',
        ledgerCurrency: 'GBP',            
        // customize the buyer experience
        checkoutLanguage: 'en_GB',
        productType: 'SignInAndSetup',
        placement: 'Cart',
        buttonColor: 'Gold',
        // configure Create Checkout Session request
        createCheckoutSessionConfig: {                     
            payloadJSON: 'payload',
            signature: 'xxxx',
            algorithm: 'AMZN-PAY-RSASSA-PSS-V2'
        }   
    });
</script>

<script type="text/javascript" charset="utf-8">
    amazon.Pay.renderButton('#AmazonPayButton', {
        // set checkout environment
        merchantId: 'merchant_id',
        publicKeyId: 'LIVE-xxxxxxxxxx',
        ledgerCurrency: 'JPY',            
        // customize the buyer experience
        checkoutLanguage: 'ja_JP',
        productType: 'SignInAndSetup',
        placement: 'Cart',
        buttonColor: 'Gold',
        // configure Create Checkout Session request
        createCheckoutSessionConfig: {                     
            payloadJSON: 'payload',
            signature: 'xxxx',
            algorithm: 'AMZN-PAY-RSASSA-PSS-V2'
        }   
    });
</script>

2. Review the pre-launch checklist

Ensure that stakeholders within your business have the proper user access permissions for Seller Central, and are aware of the launch date. Review the pre-launch checklist below to ensure a successful launch.

Complete account setup

Ensure that you have completed Amazon Pay merchant account registration, and you’re ready to process payments in Production.
Ensure all domains have been added to Seller Central. See Add domains to Seller Central for more info.
Add your logo to the Amazon Pay store configuration to maintain a seamless checkout experience. Note that the logo will be automatically resized to 50 x 150 pixels.
If you're using IPNs to handle asynchronous processes, add production IPN endpoints. See using IPNs for more info.
Upgrade to a live account if you’re using a developer account: US, EU, UK, JP.

Optimize the buyer experience

Ensure that the Amazon Pay button appears above the fold.
Reduce friction by placing the Amazon Pay button before buyers are asked to manually enter their details.
Verify that the Amazon Pay experience is optimized for both desktop and mobile experiences.
Check that buyer communication provides accurate information.

Common integration issues

Some Amazon Pay transactions are processed asynchronously. This means that Amazon Pay will return a pending response and the object will be in an Pending state until processing is complete. If applicable, make sure that you’re handling asynchronous processing.
Amazon Pay returns a string for buyer name. Make sure you’re parsing the buyer name correctly. Note that some buyers may only provide a single name, e.g. “Jane”.