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How to Merge Lists in Klaviyo

Updated on:
June 5, 2026
By:
Madhav Bhandari
Use this interactive demo to learn how to combine multiple contact lists into one in Klaviyo.

Quick summary

Merging lists in Klaviyo lets you consolidate multiple contact lists into a single destination list without losing subscriber data. This process is managed through the Lists & Segments section under the Audience panel in the Klaviyo dashboard.


Steps

  1. Go to the left-side panel and click Audience.
  2. Select Lists & Segments from the list of options.
  3. Find the list you wish to merge and click the More Options button next to it.
  4. Tap Merge List to proceed.
  5. Confirm your preferred source list and destination list, then configure their respective menus.
  6. Specify whether you want to delete the source list after merging by selecting the appropriate radio button.
  7. Click Merge to apply the changes.
  8. Once complete, the selected Klaviyo lists will be merged based on your input.

📌 Why this matters

Merging lists in Klaviyo helps email marketers consolidate overlapping or redundant contact lists, keeping audience data clean and organized without manually moving subscribers. This feature reduces list fragmentation, which can negatively impact segmentation accuracy and campaign performance. By combining source lists into a single destination list, teams can simplify their audience management and ensure consistent targeting across all Klaviyo email and SMS campaigns. Clean, unified lists also improve deliverability and make it easier to build precise segments for personalized marketing.
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