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Investigate Report Reconciliation Breaks

MediumSQL & Data Manipulation00:00
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Your question is Investigate Report Reconciliation Breaks. Take a moment with it on the right.

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Problem

Problem

You are comparing two Frontier financial reports that should tie out, but the totals differ. Explain how you would investigate the mismatch in a structured way, identify the most likely SQL/data causes, and confirm the root cause before proposing a fix.

Why It Matters

Context

In financial reporting, small logic differences can create large reconciliation breaks. Your answer should show how you would isolate whether the issue comes from filters, joins, duplicates, missing records, or timing differences.

Scope

  • Focus on SQL-based investigation and reconciliation.
  • Assume you can query the underlying tables and compare report outputs.
  • Do not write a full ETL design; explain the debugging approach and how you would validate it.