FAQ: Evaluation

• How do I upgrade my trace-level evaluators to observation-level evaluators?
• How do I work with observations in Langfuse Fast Preview (Langfuse v4)?
• How to create and manage Score Configs in Langfuse?
• How to evaluate sessions/conversations?
• How to retrieve experiment scores via UI or API/SDK?
• How to use Langfuse-hosted Evaluators on Dataset Runs?
• I have setup Langfuse, but I do not see any traces in the dashboard. How to solve this?
• What are scores in Langfuse and when should I use them?
• Why is my observation-level evaluator not executing?