# Data Cleansing > **Quick answer**: Data cleansing is the systematic process of identifying and correcting inaccurate, duplicate, or outdated records in a dataset to improve data quality and reliability. This involves removing corrupt entries, standardizing formats, filling gaps, and validating information accuracy. Clean data enables better decision-making, more effective marketing campaigns, and higher conversion rates by ensuring sales and marketing teams work with current, actionable contact information. Derrick performs data cleansing automatically during enrichment inside Google Sheets, validating and updating contact records across 100+ data points without manual exports. *Canonical: https://derrick-app.com/glossary/data-cleansingx* --- Understanding how data enrichment can be applied in real-world scenarios to drivebusiness results and improve operational efficiency. [Start Enriching Now](https://workspace.google.com/marketplace/app/linkedin_email_phone_finder_ia_%E2%80%94_derrick/3746789989?flow_type=2) ## Definition Data Cleansing Data Cleansing is the process of detecting and correcting (or removing) corrupt, inaccurate, or irrelevant data from a dataset to ensure its quality and reliability.Data cleansing is crucial in digital marketing and sales automation as it ensures that the information used in campaigns and customer interactions is accurate and up-to-date. By cleansing data, organizations can improve decision-making, enhance customer segmentation, and increase the effectiveness of personalized marketing strategies. Clean data minimizes the risk of errors and enhances the performance of automated systems by providing accurate inputs. In sales, it helps sales teams focus on valid leads and maintain strong relationships with customers through precise and relevant communications. Ultimately, data cleansing matters because it leads to efficient operations, better customer experiences, and maximized return on investment in data-driven processes. [Skip the definitions. Start generating business now →](/) ## Here is an exemple of : Data Cleansing For example, a B2B software company discovered that 23% of their CRM contacts contained duplicate entries, outdated phone numbers, or incorrect email addresses. After implementing a quarterly data cleansing protocol, their email marketing open rates increased by 15%, sales follow-ups became 30% more efficient, and lead conversion rates improved by 12%. When a sales representative contacted a previously "cold" lead with refreshed, accurate information about their recent company promotion, they secured a meeting that eventually led to a six-figure contract. This demonstrates how regular data cleansing transforms seemingly useless contact information into valuable, actionable business intelligence that drives revenue growth. ## You should also read: [Data Driven Lead Generation](/glossary/data-driven-lead-generationx)[Data Driven Marketing](/glossary/data-driven-marketingx)[Data Encryption](/glossary/data-encryptionx)[Data Enrichment](/glossary/data-enrichmentx)[Data Hygiene](/glossary/data-hygienex)[Database Management](/glossary/database-managementx)[Day Sales Outstanding](/glossary/day-sales-outstandingx) ## Why teams choose Derrick. Powerful features that save time and boost your sales pipeline. ### ENRICHMENT #### 100+ data points on companies & leads. ### AI POWERED #### Run AI on Sheet for 0extra-cost. ### 0 MINUTE LEARNING CURVE #### Know Google Sheets?Know Derrick. ### BEST VALUE #### Same quality data, fora fraction of the cost. ## Every feature you need to succeed Comprehensive tools to find, enrich, and qualify your leads. 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Everything happens in Google Sheet. [Lead ### How to Find skills from linkedin profile url? Follow these steps to learn how to find skills with linkedin profile url](/data-enrichment/find-skills-by-linkedin-profile-url)[Company ### How to Find Company Employee Count from Fullname? Follow these steps to learn how to find company employee count with fullname](/data-enrichment/find-company-employee-count-by-fullname)[Website ### How to Find company tech website from linkedin Company Url? Follow these steps to learn how to find company tech website with linkedin Company Url](/data-enrichment/find-company-tech-website-by-linkedin-company-url)[LinkedIn ### How to Find linkedin profile url from Lead Email? Follow these steps to learn how to find linkedin profile url with lead email](/data-enrichment/find-linkedin-profile-url-by-lead-email)[Phone ### How to Find phone number from fullname? Follow these steps to learn how to find phone number with fullname](/data-enrichment/find-phone-number-by-fullname)[Company ### How to Find company tagline from Company Contact Email? Follow these steps to learn how to find company tagline with company contact email](/data-enrichment/find-company-tagline-by-company-contact-email)[Email ### How to Find valid email from lead email? Follow these steps to learn how to find valid email with lead email](/data-enrichment/find-valid-email-by-lead-email)[Company ### How to Find Company Founded Year from Company Name? Follow these steps to learn how to find company founded year with company name](/data-enrichment/find-company-founded-year-by-company-name)[Company ### How to Find Company Name from Lead Email? Follow these steps to learn how to find company name with lead email](/data-enrichment/find-company-name-by-lead-email)