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  1. Prepare a CSV file in flat or columnar format.
    • Date column in YYYY-MM-DD
    • Metric values are numeric
  2. In Costory, go to Metrics > Import new metrics datasource > CSV.
  3. Upload the file, choose the orientation, and map columns.
  4. Define the metric names, aggregation, and gap-filling rules.
Last modified on March 18, 2026