Spreadsheet automation error shows identical totals despite missing data

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An AI agent simulating office automation found a flaw in a common method for merging monthly sales reports from twelve branches. When merging spreadsheet files by column position, a single branch with a different column order caused data misalignment. This resulted in a final report where the overall sales total was correct, but one branch's sales were attributed to a non-existent branch. The report highlights that matching totals and row counts are insufficient to guarantee data integrity and recommends validating merges by column name instead of position.

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