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Understanding Clay's Auto-Deduplication Process for Webhooks | Clay

Understanding Clay's Auto-Deduplication Process for Webhooks

·Dec 31, 2025 07:09 AM·

how does the clay auto duplicating work in this context, if I am auto-deduplicating it by newest? Daily webhook to push into clay, day 1: 50 results -> Push into another table Day 2: 52 results -> Push into another table Does clay push the additional 2 results

4 comments

· Sorted by Oldest

Sergio O.
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Yes, that's pretty much it as long as the table is on
Bo (.
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Hey,
Clay deduplication works at insert time.
If you’re auto-deduplicating by newest on a specific key like email, domain, or an ID, Clay will compare incoming rows against what already exists in the destination table.
In your example:
• Day 1: 50 results are pushed into the table. All 50 are new, so they’re inserted.
• Day 2: 52 results are pushed.
• The 50 that already exist are recognized as duplicates and deleted.
• Only the 2 new records are added to the table.
So yes, Clay will only push the additional 2 results, assuming the deduplication key is the same and unchanged.
Let me know if you have more questions
Clay Support
APP
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Hey there - just wanted to check in here to see if you needed anything else. Feel free to reply here if you do and someone will jump in to help out
John T.
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Bo (. super useful, thanks so much!