Adding context to errors with custom tags is crucial for understanding their root causes and business impact, and Rollbar facilitates this by allowing users to tag error data. Tags can be added during the initialization of Rollbar in an application or web page, or in the context of specific errors, using either simple string values or hierarchical key-value data formats like JSON or Python dictionaries. These custom tags, which are displayed as table columns in Rollbar, enhance error triaging by enabling users to analyze and filter errors using the Rollbar Query Language (RQL) with SQL-like syntax. This feature provides a powerful tool for quickly identifying the business impact and root causes of errors, allowing for more confident deployment of production code. Rollbar's automation of error monitoring simplifies the management of errors and exceptions in real-time, easing the process of fixing errors and enhancing the overall error management experience.