What is data decay?
Data decay is the gradual loss of accuracy in contact and company records as people change jobs, roles and phone numbers over time.
Why it matters for sales teams
A contact database is fully accurate only on the day it is built. After that, people get promoted, leave and change phone numbers and email addresses. Companies merge, rebrand, move and close. Each change makes a record a little less useful. For sales teams, decayed data means wrong numbers, bounced emails and messages sent to people who no longer hold the role.
The cost shows up as wasted time and misleading reports. Reps spend calls on dead numbers, and pipeline reports count contacts who can no longer be reached.
Example
A team builds a list of 2,000 operations leaders at the start of the year and sets it aside for a campaign that launches months later. By the time calling starts, some contacts have moved to new companies, some numbers ring someone else and some emails bounce. Refreshing the list before launch would have saved hours of dialing.
How teams manage it
Common practices include re-checking records on a schedule, enriching leads close to the time they are worked, recording bounced emails and wrong numbers as soon as they happen, and treating CRM hygiene as a routine task.