Easily merge duplicate contacts in specified contacts folder in Outlook

Author: Siluvia Last Modified: 2025-04-15

If there are a number of duplicate contacts existing in your Outlook Contacts folder, it will be tedious and time-consuming for you to clean up all the duplicates. But with the merge "Duplicate Contacts" utility of "Kutools for Outlook", you can easily merge all duplicate contacts based on specific fields within designated contact folders. This tool works across multiple email accounts in Outlook, integrating their information efficiently.

Easily merge duplicate contacts in Outlook

Easily merge duplicate contacts in Outlook

To easily merge all duplicate contacts in specified contacts folder in Outlook with the "Duplicate Contacts" feature, please do as follows.

1. On "Kutools" tab, click "Duplicate Contacts" in "Delete" group (you can also click "Kutools Plus" > "Duplicate Contacts" to enable the feature).

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2. In the opening "Duplicate Contacts - Step 1 (of 5): Specify the data file(s)" dialog box, check the data files where you will merge duplicate contacts, and then click the "Next step: Specify contact folder" button.

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Note: If you have multiple email accounts in your Outlook with sizable contacts folders, a loading contacts folder(s) window will pop up. You can click the "Skip the current loading email account" button, or wait for all the folders to load.

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3. After finishing loading folders, in "Duplicate Contacts – Step 2(of 5)", check the folders containing duplicate contacts and click "Next: Select contacts fields for duplicate comparison".

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Tips:

1) Right-click the folder list for options like "Check all".
2) Contacts from folders listed at the top will be prioritized during merging.

4. In Step 3, select contact fields to filter duplicate contacts, then click "Next: Select the fields to be listed in results".

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Note: Check "Search all duplicates in selected Contacts folders" to compare across folders.

5. In Step 4, specify fields to be listed in results, and click "Start filtering".

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6. In Step 5:

6.1) Expand a group and preview details.
6.2) Select "Merge" in the drop-down.
6.3) Click "Apply now" to start merging.

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Note: You can also right-click a group and select "Merge all checked items in the group".

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7. When prompted with a confirmation dialog that merge is complete, click "OK".

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Now all duplicate contacts are merged. Merged entries will appear with strikethrough. Close the wizard to finish.

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Notes

1. The utility remembers your last settings. Next time, just click "Start filtering" in Step 2 to reuse previous configurations.
2. To handle duplicate contact groups, choose fields like "Contact group name (Contact group)", "Member name (Contact group)", or "Member’s e-mail address (Contact group)" during Step 3.

Demo: Easily merge duplicate contacts in specified contacts folder with Kutools for Outlook

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