How to Use Smart Columns to Find Duplicates in Your monday.com Board

Automatically detect and manage duplicate items across your workflows.

Duplicate entries in monday.com can cause chaos—misaligned reports, multiple owners working on the same item, and confusion around priorities. Whether you’re tracking leads, support tickets, inventory, or content, accidental duplication wastes time and can damage accuracy.

Why It Matters

Preventing and resolving duplicates ensures clean, reliable data. It helps teams stay aligned, keeps boards organized, and supports efficient automations and reporting without relying on manual audits.

Real-Life Use Cases

  • Sales CRM: Flag when a contact already exists in the system
  • HR onboarding: Avoid duplicate employee profiles across boards
  • Inventory: Ensure SKU codes or item IDs aren’t entered more than once
  • Support tickets: Group or merge duplicate issue reports for faster resolution

What This Smart Column Does

The Duplicates Smart Column automatically identifies and acts on duplicate items using values from one or more columns (“chips”). When duplicates are found, it can move them to a group, label them, or trigger automations.

How to Set It Up

Step 1: Install Duplicates Smart Column

Click the button below to install the Duplicates Smart Column.
👉 [Add to monday.com]

Step 2: Go to the Desired Board

Open the board where you’d like to detect and manage duplicates.

Step 3: Add the Duplicates Smart Column

  • Click the three-dot menu (…) on your selected column
  • Go to Column Extensions
  • Choose Duplicates Smart Column from the list

Step 4: Select the Chips to Match for Duplicates

“Chips” are column values you want to compare—such as email, name, phone number, or ID. You can choose multiple chips for advanced matching logic.

Step 5: Choose the Group for Duplicate Items

Pick a group where duplicate items should be moved for review or cleanup (e.g., “Review Duplicates” or “Conflicts”).

Step 6: Set the Trigger for Duplicate Detection

Decide when to check for duplicates:

  • Item is created – Run check when a new item is added
  • Column is changed – Trigger duplicate check when values are updated
  • Item is moved to any group – Run check on group transition
  • Status is changed to something – Trigger based on workflow status updates

Step 7: Save Your Settings

Click Save once all conditions are set. Your board will now monitor for duplicates and take the actions you’ve configured—automatically.

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