Share to gain more social capita
Written by — Aino Vaittinen, Data Management Consultant
Learn how to turn your data from a liability into your greatest AI asset and how to build strong data foundations.
Written by — Aino Vaittinen, Data Management Consultant
Share to gain more social capita
How concerned would you be if 80% of your customer data proved to be unusable? Would you let it be, or take action to fix the situation? In this blog, we’ll explore why you should take action, what happens if you don’t, and what practical steps you can take to improve your data quality.
At first, 80% might sound like an exaggerated number, but it’s not. In one real B2C data sample we analyzed, only about 24% of the data passed even basic quality checks. And meeting those checks doesn’t automatically mean the data is good.
Today, collecting and storing data is easier (and cheaper) than ever. As a result, organizations often gather data simply because that’s what everyone does. But without intention, even the most advanced data platform, or the simplest Excel sheet, becomes a digital junkyard.
Problems usually surface only when the data is actually needed; say, for marketing, reporting, or operational decisions. That’s when many realize that “doing data” isn’t enough.
At the very least, bad data means wasted money. You pay to collect, process, and store data that doesn’t deliver value. But the consequences go much deeper than cost.
This brings us to Master Data Management (MDM), the foundation of any data-driven organization. Master data covers your core business entities: customers, employees, products, services, locations, and cost centers.
Because master data is relatively static and reused across many processes, poor-quality data can quietly wreak havoc:
So, what are the downstream effects? Lower sales, frustrated customers and employees, inefficient operations, and wasted investments in AI and analytics built on unreliable foundations.
Compliance needs to be considered too, especially GDPR. Poor-quality customer data can make it nearly impossible to meet legal obligations around consent, deletion, and transparency. You can’t manage what you can’t trust.

The instinctive reaction is to fix bad data. But unless you also address the root causes, you’ll be cleaning again soon. Sustainable improvement comes from prevention, and prevention means focusing on three dimensions: people, processes, and tools.
Let’s explore these from the customer data perspective.
Start by identifying where customer data exists and how it flows between systems. Your data might live in:
Any of these can work if the surrounding processes and people do. Once you’ve mapped your systems, assess your data quality by reviewing integrity (are the values accurate?) and completeness (do you even have all the necessary data points?).
Next, map your data processes; how data is created, used, modified, and deleted.
The processes that generate data determine its quality. The processes that use data define what’s needed and acceptable. For example, sending newsletters requires far less data than managing insurance policies.
Improving these processes might mean:
Your tools may set limitations, so iteration and adjustment are often necessary.
Finally, let’s talk about the most critical element: people.
People define and run business processes, build and use tools, and create and consume data. In B2C contexts, they’re also the subjects of that data.
Data quality starts with motivation. Even the best systems can’t fully automate good data habits. If people see validation rules as tedious obstacles, quality will suffer.
To motivate your employees, emphasize the why: show them how their data entries impact the entire business, from marketing to customer satisfaction. Education, transparency, and feedback loops go a long way.
And when it comes to customers, offer value in exchange for accurate information. Loyalty programs, giveaways, or personalized experiences can encourage customers to share their data willingly and correctly.

Bad data hurts your systems, which shapes your decisions, influences your customer relationships, and ultimately defines your brand’s credibility. In other words, your data does something to you, whether you realize it or not.
The good news, though, are you’re not powerless.
Start by knowing your data: where it lives, how it’s used, and who touches it. Build awareness among your people, create clear accountability, and make data quality a shared responsibility and not just something for IT to think about.
When you shift from doing data to understanding data, your organization transforms. You stop reacting to problems and start building with confidence. Your reports become reliable, your customers more engaged, and your teams more empowered.
Because in the end, the real question isn’t “Do you do data?”. It’s “Does your data work for you, or against you?”