What issue does the Payment Intents API address regarding transactions?

The Payment Intents API primarily addresses transaction failures, particularly in the context of handling complex payment flows and better managing the payment lifecycle. It allows developers to create payments that can accommodate various scenarios and payment methods, including those that require additional authentication steps due to regulations like Strong Customer Authentication (SCA) in Europe.

By using the Payment Intents API, developers can ensure that there are clear states during the payment process, such as requiring confirmation or handling retries in case of failures. This enhances the robustness of the payment process, minimizing the chances of failed transactions caused by issues relevant to customer verification or charge completion.

While double charges can occur for various reasons, they are not directly addressed by the Payment Intents API, which focuses more on managing the flow of a single transaction. Similarly, privacy policy compliance and transaction currency mismatches are related issues but are handled separately from the core functionalities of the Payment Intents API, which is centered on ensuring successful transaction processing in the face of dynamic payment interactions.