Show Duplicate Records in Lightning Experience

If a record duplicates other records, you can alert sales reps when they open the record in Lightning Experience. Activate duplicate rules and add alerts to page layouts.

Required Editions

Available in: Lightning Experience
Available in: Essentials, Professional, Enterprise, Performance, Unlimited, and Developer Editions
User Permissions Needed
To view duplicate rules and matching rules: View Setup and Configuration
To create, edit, delete, activate, and deactivate duplicate rules and matching rules: Customize Application

In orgs created in Summer ’17 and later, standard duplicate rules and the Potential Duplicates component are set up and activated for business accounts, contacts, and leads. To use duplicate rules and the Potential Duplicates component for person accounts, first enable person accounts. Then activate person account matching rules and duplicate rules, and add the Potential Duplicates component to your person accounts layout.

You can alert sales reps to duplicates by showing a card on record home pages.

On a record detail page, duplicate alert in a card: We found 1 potential duplicate of this account. (link) View Duplicates

Or you can show a temporary toast message. You can also display both types of alerts.

On a record detail page, duplicate alert in a toast: It looks as if duplicates exist for this account. (link) View Duplicates
  1. In Setup, use the Quick Find box to find Lightning App Builder.
  2. On accounts, contacts, or leads, add the Potential Duplicates component.
    Adding the Potential Duplicates component to a record home page
  3. Select how you want to alert sales reps to duplicates.
    Options for displaying duplicate alerts on record home pages
    You can’t add the Potential Duplicates component to custom objects. However, you can create rules to handle custom-object records that duplicate an account, contact, or lead.

Reps who have permission to merge duplicates can choose up to three records on the same object to merge.