Telebugs collects detailed error reports using Sentry SDKs, providing comprehensive insights into issues occurring in your applications. These reports include various data points to help diagnose and resolve errors efficiently. By capturing structured data such as backtraces, breadcrumbs, and contextual information, Telebugs enables developers to quickly identify the root cause of errors and improve application reliability. In this chapter, we will explore the structure of error reports in Telebugs, how similar errors are grouped, and how to annotate reports with notes for collaboration.