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Best Practices & Known Limitations

Best Practices

To ensure the most accurate and reliable results:

  1. Provide geocoordinates whenever possible — improves accuracy.
  2. Use PreETA only until real-time tracking becomes available.
  3. Refresh PreETA whenever the delivery date changes.
  4. Avoid caching results by address — predictions vary per delivery day and are continuously updated.

Testing & Validation

  • Monitor API latency and error codes.
  • Validate with known address samples.
  • For test credentials, contact: customer@bettermile.com

Known Limitations

  • PreETA does not predict the delivery date itself — it relies on the estimated delivery date provided in the request.
  • Coverage may be limited in regions without sufficient historical data.
  • Contradictory input data can result in no PreETA being returned.