What must you do after configuring report grouping using the CLI command?

After configuring report grouping using the CLI command on a FortiAnalyzer, rebuilding the report cache tables is a necessary step to ensure that the changes you have made are applied effectively and reflected in the reports generated. The report cache tables are responsible for storing report data, and modifying the report groupings without rebuilding these tables will mean that the newly configured groupings will not be recognized or utilized in the report outputs.

This rebuilding process refreshes the cached data and aligns it with the new configuration, enabling the system to provide accurate reporting based on the updated groupings. Doing so ensures that any analytical or data retrieval processes utilize the most current setup, thereby maintaining the integrity and relevance of the reports your organization relies on for analysis and decision-making.

Other choices such as saving the configuration or logging out and logging back in do not directly facilitate the immediate application of the new group settings in reports. Restarting the device is also unnecessary and could lead to potential downtime or disruption in services, making it an impractical option in this scenario.