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Real-World Scenario: A Canvas App becomes extremely slow after reaching 500,000 records. How would you troubleshoot it?

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Investigation Steps:

  1. Check delegation warnings.
  2. Review API calls.
  3. Analyze collection sizes.
  4. Inspect gallery loading.
  5. Reduce unnecessary controls.
  6. Use Monitor Tool.
  7. Optimize formulas.

Common Root Causes:

  • Non-delegable queries.
  • Large collections.
  • Nested galleries.
  • Excessive lookups.

The Monitor Tool is usually the first diagnostic tool used by Power Apps architects.