What is handling missing values during transformation?

< 1 min read

Handling missing values means treating null or blank fields so analysis remains accurate.
We first identified mandatory columns like Order ID and Amount.
Critical missing records were removed to avoid wrong KPIs.
Non-critical fields were filled with default values like “Unknown” or 0.
In my project, missing city was mapped using postal code reference.
Date gaps were handled using previous known value when business approved.
We documented all assumptions with stakeholders before applying fixes.
Power Query replace and conditional columns were used for handling.
This prevented calculation errors and blank visuals.
So proper handling keeps reports consistent and reliable.

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