Eliminate messy data in Copper CRM. Merge duplicates and stop errors early.
Published on September 21, 2025
Duplicate contacts are one of the most common and frustrating problems in any CRM. A messy database in Copper CRM can lead to wasted time, skewed sales reports, and awkward interactions with prospects. At Add to CRM, we believe that a clean CRM is the foundation of an efficient sales process. In this guide, we'll walk you through how to merge duplicate records in Copper CRM and, more importantly, how to prevent them from happening in the first place.
Duplicate records aren't just a minor inconvenience; they actively undermine your sales efforts. When your team can't trust the data in your CRM, efficiency plummets. Duplicates lead to inaccurate reporting, wasted effort when multiple reps contact the same lead, and a poor customer experience. They typically arise from manual data entry errors, inconsistent data formats, or multiple team members importing the same contacts without a standardized process.
Copper CRM helps prevent some duplicates by using a unique identifier for records: an email address for People and an email domain for Companies. However, duplicates can still occur, especially with Leads, which have no unique identifier, or when data is entered inconsistently.
The most common way to find duplicates is by manually searching for a contact or company before adding a new one. If you find multiple entries for the same entity, it's time to merge them.
Merging duplicates in Copper CRM is a straightforward process. By combining records, you consolidate all activities, notes, and contact details into a single, accurate profile. Here’s how to do it:
Be careful: Merging records is a permanent action and cannot be undone.


If you're dealing with a large number of duplicates, you can handle them in bulk. The process is the same: select all the records you wish to merge from the list view and follow the steps above. This is a powerful feature for data cleanup, but it requires extra caution. Always double-check your selections before finalizing a bulk merge.
LinkCopper is a Chrome extension that finds verified contact information from LinkedIn and adds standardized data to Copper CRM. While merging is a useful cleanup tool, prevention is always the better strategy. Our extension helps you build a clean database from the start by eliminating the primary cause of duplicates: manual data entry errors.
Think about the time your team spends finding and merging duplicates. It's a reactive, manual chore that takes away from valuable selling time. Starting with clean data is a proactive approach that saves hours of administrative work. By using a tool like LinkCopper, you ensure that every new contact is added with verified, standardized information, preventing duplicates before they ever enter your CRM.
It only takes a minute to get started:
Our LinkedIn integration does more than just add new contacts—it helps you avoid creating duplicates in real-time. When you're browsing LinkedIn, LinkCopper automatically checks if a person is already in your Copper CRM, preventing you from accidentally adding the same lead twice.
If our tool finds that a contact already exists, you can use it to enrich their profile instead of creating a new one. With one click, you can update their existing record in Copper CRM with the latest, most accurate information from their LinkedIn profile. This keeps your data fresh and ensures you have a complete history of interactions in one place.
Seeing which prospects are already in your CRM directly on their LinkedIn profile is a game-changer for prospecting. This immediate visual confirmation stops your team from creating duplicate records during their workflow, which is one of the most common ways messy data gets into the system. It’s duplicate prevention that works where your team works.
Beyond using the right tools, establishing good habits is key to maintaining a clean CRM:
Managing duplicates in Copper CRM is essential, but the best strategy is to prevent them from being created in the first place. While Copper provides the tools to merge and clean up records, a proactive approach saves time and builds trust in your data. By automating data entry and providing real-time duplicate checks on LinkedIn, our tool helps you build a clean, efficient database from day one.
Ready to stop cleaning up messes and start building a more effective sales process? Try LinkCopper for free today and see how much time you can save.
Find verified contact info for your prospects on LinkedIn®, Gmail, Outlook & company websites. Add them to your Copper CRM with 1-click.
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