What Is Data Hygiene and Why It’s Critical for Dealership Marketing Success

February 5, 2024

Brooke Furniss

Introduction: Why Clean Data Is a Dealership’s Hidden Superpower

Data hygiene sounds boring — until you realize how much it’s costing your dealership in wasted ad spend, missed service revenue, and poor customer retention.

For auto dealers, data hygiene means having accurate, complete, and regularly updated customer and vehicle data across your CRM, DMS, website, and marketing platforms. In an industry where every touchpoint matters, dirty data creates broken journeys, missed opportunities, and inflated vendor reports.

Let’s break down why data hygiene matters now more than ever — and what you can do about it.


What Is Data Hygiene for Auto Dealers?

Data hygiene refers to the ongoing process of auditing, cleaning, and maintaining accurate customer and operational data. For auto dealers, this includes everything from:

  • Customer contact info (email, phone, address)
  • Vehicle ownership status (active vs No Longer Owned)
  • Service history and recall status
  • CRM and DMS syncing
  • Vendor attribution and digital tracking

Key Data Hygiene Stats Every Dealer Should Know

Here’s what I see in most dealership audits — and it’s not pretty:

  • 20.1% of records are flagged as No Longer Owned (NLO)
  • 17% of customer records have bad or changed addresses
  • 49.8% of records have missing or unverified emails
  • 20% of DMS customers have an open recall
  • 12% of customers have moved out of the area
  • 4% of your customer base changes every month
  • Over 50% of addresses are not updated by NCOA
  • 40%+ NLO rates are common in older dealership databases
  • 49% of emails can be corrected or added when cleaned properly
  • 8% of contacts have new or changed mobile numbers

🚨 TLDR: You may be spending big money targeting people who don’t own the car anymore, don’t live nearby, or can’t even be reached.


Why This Isn’t Just About GA4 (But It Definitely Ties In)

Even if your GA4 property is perfectly configured (and let’s be honest—it probably isn’t), you’re still only seeing part of the picture if your CRM and DMS data are full of holes.

Your website might show a “form submission” event, but that lead could be tied to:

  • A customer who moved out of state
  • A vehicle that’s been sold
  • A fake email like [email protected]
  • A duplicate entry showing up as “new”

💡 Data hygiene ensures that what GA4 is reporting reflects real, usable opportunities—not junk data. Without that connection, you risk optimizing your marketing based on false signals and missing out on true revenue-driving opportunities.


The Real Impact of Bad Data: Marketing & Fixed Ops

📉 How Dirty Data Hurts Marketing ROI

  • You’re sending email campaigns to invalid addresses or spam traps
  • You’re retargeting people who already bought elsewhere
  • Your vendor reports are inflated with low-quality “conversions”
  • You’re wasting paid media budgets on ghost audiences

🔧 How It Hurts Fixed Ops & Service Retention

  • You miss recall outreach and lose trust with customers
  • You can’t personalize service reminders or incentives
  • Customers who moved away are still in your DMS — and customers nearby might not be
  • You’re not tracking proximity or historical ownership correctly

What Does Clean Data in Marketing Look Like?

  • Every form fill, chat, or DR tool event is attributed to the right vendor
  • You know which customers are still in-market, in your area, and still own the vehicle
  • Email campaigns have real deliverability and engagement
  • Service retention strategies actually reach the right people
  • Every digital interaction is tracked with event owner, lead source, and vehicle-level context

How to Improve Automotive Data Quality

While BZ Consultants Group doen’t personally clean your CRM/DMS, we help dealerships audit the gaps, identify trusted partners, and hold vendors accountable for implementation.

Here’s what I look for in a real data hygiene solution:

  • ✅ Bi-directional integration with CRM and DMS
  • ✅ Transparent reporting on NLO, recalls, email verification, and contact updates
  • ✅ Ability to append and enrich customer profiles (not just remove or flag)
  • ✅ Clean syncing with Google Ads, GA4, and GBP for full visibility

Bonus: Don’t Trust Just Anyone Who Says They “Do Data Hygiene”

There are a lot of vendors who say they offer data hygiene but can’t prove it or show real results. I work with product-agnostic, proven partners who actually deliver — not just promise.

If you’re unsure who to trust or what your data really looks like…


✅ Get a Free Dealership Data Audit

While BZ Consultants Group doen’t clean your data myself, we do offer a complementary audit of your website and Google Business Profile (GBP) — and help you find the right partner to clean up your data the right way.

📞 Schedule your free dealership data audit today.
Let’s get your data working for you — not against you.


Would you like me to also write a LinkedIn or social post to promote this blog? Or get this into a Google Doc format for easy publishing?

Schedule Now
Profile image

Brooke Furniss

Brooke Furniss is the Founder of BZ Consultants Group and host of Facts Not Feelings. She partners with dealerships to clean up bad data, fix analytics, and hold vendors accountable so teams can finally see what’s really working.