The Scenario
A deliverability consultant flagged a problem with a client's "Main Newsletter" list: 600 addresses that have not opened an email in over 14 months are dragging the engagement rate down and hurting sender reputation. The removal list is in an Excel workbook — one email per row in column A. These contacts need to be removed from the list but not suppressed, so transactional emails can still reach them.
The bad version:
- Log into Klaviyo, navigate to the "Main Newsletter" list, and look for a bulk member removal option — find that the UI does not support removing specific addresses by list, only full-list operations.
- Try to use the Klaviyo API documentation to find the list member delete endpoint, format the 600 emails into the correct request body, and realize the endpoint accepts a maximum of 1,000 IDs per call — but requires profile IDs, not email addresses.
- Look up all 600 profile IDs by email, format them into the request, submit, and cross-reference the result against the workbook.
The next campaign goes out in four days. The deliverability problem has been on the agenda for three weeks.
The Easy Way: One Prompt in SheetXAI
SheetXAI is an AI agent that lives inside your Excel workbook. It reads the removal list and calls Klaviyo's list membership removal endpoint — handling the email-to-profile-ID lookup automatically.
Remove all email addresses in column A from the Klaviyo list named "Main Newsletter"
What You Get
- All 600 emails are submitted to Klaviyo's list member removal endpoint in batches.
- Profiles are removed from the list but not suppressed — transactional sends are unaffected.
- Any email not found as a list member is noted in the output.
What If the Data Is Not Quite Ready
You need a status log for each row
Read the "Inactive Subscribers" worksheet and remove every email in column A from Klaviyo list ID list456, writing "REMOVED" or "NOT_FOUND" in column B
The removal list needs deduplication before processing
Deduplicate column A by email address, then remove all unique emails from the Klaviyo list named "Main Newsletter" and write the removal status into column B
You want to remove from two lists simultaneously
Remove all emails in column A from both the Klaviyo list named "Main Newsletter" and the list named "Promotional Offers" — write the status for each list into columns B and C respectively
Full cleanup with deliverability reporting
Deduplicate column A, remove all unique emails from Klaviyo list "Main Newsletter", write "REMOVED" or "NOT_FOUND" into column B, write the removal date into column C for successful removals, and output a summary showing total removed, total not found, and estimated new list size
The list is clean before the campaign goes out.
Try It
Get the 7-day free trial of SheetXAI and open your inactive-subscriber tracking workbook, then ask it to remove all of them from the Klaviyo list in one pass. Also see how to bulk suppress opt-out contacts for cases where full suppression from all sends is what is needed.