This Guidance demonstrates how you can set up scan and go technology using AWS services. It can help you move the scan and checkout process to your own application with the help of AWS AppSync, which creates GraphQL APIs and offers a single endpoint for your data. This Guidance also shows how you can configure various other AWS services to provide personalized recommendations, stream the data to a centralized data lake, and authenticate users. The authenticated users will scan any barcode, either 1D or 2D, where they can read about the product, check the price, and more, then move the product to their cart to complete the self-checkout process. Finally, by leveraging machine learning capabilities, the application incorporates features such as fraud detection, and near real-time redemption of loyalty points.