Create a small, consistent set of activity labels before asking staff to track time. Use customers and projects to reflect real work ownership, then review a sample week of entries for missing descriptions and inconsistent categorization.
Keep reporting requirements in mind when choosing the project structure. Kimai can connect recorded work to billing, but specialized functions may depend on plugins. A self-hosted installation needs backups and updates, and time-entry policies should explain what staff are expected to record and review.