# How to run a proof of concept for CRM deduplication | Dedupely

> A proof of concept shows whether a deduplication tool handles your data before you commit. Bring edge cases, clear security early and test on your own CRM.

- URL: https://dedupe.ly/blog/crm-deduplication-proof-of-concept
- Section: blog
- Published: 2026-10-23
- Site index: https://dedupe.ly/llms.txt
- Any page: append `.md` to its URL for this plain-text form

---

[Blog](https://dedupe.ly/blog)
Productivity

## How to run a proof of concept for CRM deduplication

By
[Gaby Salinas](https://www.linkedin.com/in/gbyslns)
Updated October 23, 2026
#
min read
TL;DR
- A deduplication proof of concept tests a tool on your edge cases before you commit.
- A demo on sample data comes first, since connecting a CRM often needs security approval.
- IT and compliance review a deduplication tool before it connects to the CRM.
- The proof ends with a small test merge on your own data, checked in the CRM.
- Dedupely evaluations move from a demo to due diligence, onboarding and a first test merge.
Choosing a deduplication tool for a large CRM is hard to do from feature pages. Many tools say they find and merge duplicates. What you need to know is whether one handles your data, your edge cases and your security requirements.
A proof of concept answers that before you commit. It's a short, structured evaluation that ends with a real merge on your own records.
In this post, you'll see how to run one, stage by stage. That covers what to define first, what to bring to the demo and when to involve IT. You'll also see how to test on your own data and who to bring in before you decide.

### Define what the proof of concept must show

A proof of concept without a goal turns into a long demo. Before the first call, write down what the tool has to prove for your team.
- **It finds the duplicates you know about.** Including the hard ones, like a person with a work and a personal email.
- **It leaves alone what isn't a duplicate.** Like branches of one company or a shared inbox.
- **The merged record looks the way you expect.** The right owner, stage and values survive.
- **It passes your security and compliance review.**
- **It works at your volume.** Syncing and merging fit your timeline.
Our checklist on [what to compare when choosing a deduplication tool](https://dedupe.ly/blog/how-to-choose-a-deduplication-tool) has the questions behind each of these.

### Bring your edge cases to the demo

Enterprise teams often can't connect their CRM to a new tool right away. Security approval comes first, so the first look usually happens on the vendor's own sample data.
That doesn't make the demo generic. Bring the cases that worry you, described without customer data:
- Records that share a domain but belong to different offices or subsidiaries.
- People with several emails, roles or accounts.
- Fields your team relies on, like an internal account number or a custom owner field.
- Merges where the CRM's default outcome isn't what you want.
Ask the vendor to show how the tool would handle each one, and how you'd build the process around it. Expect new questions to come up. Teams often find they can customize more than they planned, which changes what they want to test.

### Run due diligence before you connect the CRM

A deduplication tool reads your CRM and changes records in it, so IT and compliance review it before it connects. Start that review early, in parallel with the demo if you can.
Send the vendor your requirements and questionnaires, and ask to talk to the people who handle compliance on their side. Common topics are hosting, access control, certifications, subprocessors and how AI features process data. Our post on [what security teams ask about a deduplication tool](https://dedupe.ly/blog/security-review-deduplication-tool) covers them.
Some teams bring IT into a call even before the formal review starts. That's often faster than passing questions back and forth by email.

### Connect and test on your own data

Once IT approves, connect the CRM. If your CRM offers a sandbox and the tool supports it, you can test there first. Your production data is still where the real duplicates are.
- **Start with one object.** Contacts or companies are usually enough to judge a tool.
- **Check the counts.** Note how many matches and records each search finds, and whether that fits what you expected.
- **Look for your known sets.** Check that the duplicates you listed appear and the non-duplicates don't.
- **Time the sync.** A large database can take hours to load, and that's part of what you're testing.
-
**Look past the record count.** Our post on [complex CRM deduplication at scale](https://dedupe.ly/blog/complex-crm-deduplication-at-scale) explains what makes a large cleanup hard.

### Set up the process and run a first test merge

With data connected, set up the searches and merge rules the way you'd use them in production. Work through your specific cases with the vendor's team, since this is where most open questions get answered.
Then run a first test merge on a small sample. Open each merged record in the CRM and check the owner, the values that won, the activity history and any related records.
Note
Treat every merge as permanent. Keep the test merge small, and pick records whose outcome you can check by hand.

### Bring in the wider team before you decide

The people who will live with the merges should see the results before you buy. That often means sales operations, the CRM admins, a marketing owner and IT.
Show them the test merge, the rules behind it and how unclear sets would be handled. It's easier to answer their questions now than their objections after a bulk merge.
| Stage | Who's involved | What you should come away with |
| --- | --- | --- |
| Define the goal | RevOps or the CRM owner | A written list of what the tool must prove |
| Demo with your edge cases | RevOps, the vendor | How each case would be handled, and new questions |
| Due diligence | IT, compliance, the vendor's compliance team | Approval to connect the CRM |
| Connect and test | RevOps, CRM admin | Counts, known sets checked, sync time |
| Setup and test merge | RevOps, the vendor's team | A small merge checked record by record |
| Wider team review | Sales ops, admins, marketing, IT | A decision everyone has seen the evidence for |
The order isn't fixed. Some teams run the security review first, and some bring the wider team in before the test merge. What matters is that each stage has an owner and an outcome.

### How a Dedupely proof of concept works

A Dedupely evaluation starts with a demo on Dedupely's own demo account, built around your edge cases. For due diligence, Dedupely connects your IT and compliance team with its own compliance team. Once you connect your CRM, an onboarding call covers setup and your specific cases, and ends with a first test merge.
Demo calls take up to about 30 minutes. Since Zoom calls are unlimited, you book as many as you need until every question is answered, so evaluation length varies. Support can also start your trial on a later date, once you're ready to connect.
[Start your free trial](https://v2.app.dedupe.ly/signup)

### Prove it on your data before you scale

A proof of concept turns a tool decision into evidence. You see how your edge cases are handled, and IT signs off before any data moves. A small merge then shows the real outcome in your CRM.
By the time you decide, the people who'll use the tool have seen it work on their records. That makes the move to merging at scale a continuation of what you tested, with no leap of faith.

### Frequently asked questions

#### What is a proof of concept for a deduplication tool?

It's a short, structured evaluation that tests a deduplication tool on your own requirements before you commit. It usually covers a demo with your edge cases and a security review. It ends with a test on your CRM data and a small merge you check record by record.

#### How do you evaluate a CRM deduplication tool?

Write down what it must prove, like finding your known duplicates and leaving known non-duplicates alone. Bring those cases to a demo, run the security review, then test on one object of your own data. Finish with a small merge and check every result in the CRM.

#### Can you test a deduplication tool without connecting your CRM?

Partly. A demo on the vendor's sample data shows how the tool handles cases like yours, without sharing your records. To see real counts and real merge outcomes, though, you'll need to connect your CRM once IT has approved the tool.

#### Who should be involved in evaluating a deduplication tool?

RevOps or the CRM owner leads it, IT and compliance run the security review, and the CRM admins help test. Before deciding, show the results to the teams that rely on the data, like sales operations and marketing. Their questions then come up before the first bulk merge.

#### Should you test deduplication in a sandbox first?

It helps when your CRM is heavily customized, with automations that run on merge. A sandbox lets you test searches and rules without touching production. Sandbox data is often older or partial, though, so confirm the results on a small production sample before you merge at scale.
Behind the article

### Gaby Salinas

Marketing Assistant at Dedupely
Gaby Salinas came to CRM data from marketing and advertising, so she looks at duplicates from two sides: the match and merge logic behind them, and what they do to the people using the CRM, like the rep who calls a customer twice, the admin who gets blamed and the cleanup nobody wants to start.
As Marketing Assistant at Dedupely, she follows how RevOps teams, end users, consultants and technical teams actually work with their data: the records they stop trusting, the workarounds they build and the moment they finally decide to clean up. What she finds shapes most of what Dedupely publishes.
[Connect with Gaby on LinkedIn](https://www.linkedin.com/in/gbyslns)

### Contact us

We’d be happy to help you get this set up.

#### Write us a message

We probably know the answer to your question already
help@dedupe.ly
Email copied to your clipboard!
[Book a Zoom Whether you’re getting started or getting intense. Get in touch! Book a zoom](https://meetings.dedupe.ly/meetings/gaby-salinas/dedupely-zoom-scheduler)

### Discover Related Blog Posts

Stay updated with our latest articles and insights.
[Productivity How to choose a CRM deduplication tool Before you pick a deduplication tool, ask how it matches, what it keeps in a merge, how it keeps merges safe, how it's priced and who helps you. Gaby Salinas October 19, 2026](https://dedupe.ly/blog/how-to-choose-a-deduplication-tool)
[CRM Organization What security teams ask about a deduplication tool Security teams ask where data is stored, who can access it, which audits and subprocessors apply, and how merges are logged. Here's what each answer shows. Gaby Salinas October 19, 2026](https://dedupe.ly/blog/security-review-deduplication-tool)
[Duplicates Complex CRM deduplication at scale Complex deduplication comes from thin overlapping data, mixed criteria and field rules. Automate once three or four strong fields match. Gaby Salinas October 15, 2026](https://dedupe.ly/blog/complex-crm-deduplication-at-scale)

### Get started for free

20 free trial merges and as much free support as you need to get your duplicates under control.
[Talk to sales](https://meetings.dedupe.ly/meetings/gaby-salinas/talk-to-sales)[Try for free](https://v2.app.dedupe.ly/signup)
[Or sign up with Google](https://v2.app.dedupe.ly/signup/google)
Running CRM cleanup for clients? [See the Partner Program](https://dedupe.ly/become-a-partner)
Skip to content