CSV column mapping
Matching an imported file's columns to expected fields (first name, last name, company, domain) before enrichment.
Before enriching a CSV, you must say which column holds the first name, last name, company, domain. A wrong mapping — swapped first/last name, a "company" column mistaken for "domain" — corrupts the entire enrichment.
A good tool auto-detects column roles and fixes ambiguous cases (an uppercase block identified as the last name, a URL column recognized as the website). It is a quiet but decisive step for result quality.
Related terms
To go further, read our B2B data enrichment guide or try the free email verifier.
From theory to practice
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