Data hygiene is the ongoing practice of maintaining clean, accurate, and usable data in your business systems. It includes regular deduplication, email verification, field standardization, and removal of outdated or incomplete records. Think of it as preventive maintenance for your database: if you don't do it regularly, small problems accumulate into systemic issues.
Why It Matters
B2B data decays at roughly 30% per year. People change jobs, companies get acquired, phone numbers disconnect, email addresses bounce. A database that was clean in January is 7-8% degraded by April. Without regular hygiene, your sales team spends more time chasing bad data than having conversations. Your marketing campaigns hit spam traps. Your reports show pipeline that doesn't actually exist.
What Data Hygiene Includes
- Regular deduplication: Run duplicate scans monthly or quarterly to catch records created through imports, form fills, and integrations
- Email verification: Verify email deliverability quarterly. Remove hard bounces. Flag catch-all domains
- Field standardization: Enforce consistent formats for phone numbers, addresses, titles, and company names
- Completeness audits: Identify and fill records missing critical fields like email, phone, or industry
- Decay monitoring: Track the rate at which your data degrades and schedule cleaning cycles accordingly
Example
A company with 40,000 CRM records does quarterly hygiene. Each quarter they find and merge 800 duplicates, verify and remove 1,200 dead email addresses, and update 2,000 records where contacts changed jobs. Their deliverability stays above 95% and their sales team trusts the data enough to actually use it.
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