Custom error handling refers to the process of creating specific responses for errors that may occur during transactions or interactions with blockchain networks. This approach helps users understand what went wrong and how to address the issue, enhancing their experience and reducing confusion.In the context of applications that use blockchain, such as wallets or exchanges, errors can arise from various situations, including insufficient funds, network issues, or invalid addresses. Instead of displaying generic error messages, custom error handling provides more informative feedback. For instance, a wallet might show a clear message when a transaction fails due to low balance, guiding the user on how to proceed. This targeted communication builds trust and empowers users by providing actionable steps rather than leaving them guessing.Custom error handling can significantly improve the usability of cryptocurrency applications. By anticipating problems and responding with meaningful information, developers can help users navigate the complexities of digital assets more effectively.