Why are old items triggering my Zap?

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Updated at August 20th, 2025

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In rare cases, a polling trigger cannot recognize that an item is not new, so it triggers the Zap from previously seen information. This can happen when:

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A large number of items are deleted from the trigger app, causing older items to be surfaced and picked up by the Zap.
You delete items, thereby changing the position of older items (the row where that information is in, for example). This causes the Zap not to recognize that item, as it may use a combination of content and position to recognize duplicates.

If you need to make significant changes to items in your app that's linked to a Zap, you can turn the Zap off until all changes are completed, and then turn it back on.

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If this article did not fix the issue, Zapier has a few other options to get you the help you need:

Contact Zapier Support. Our Support team can investigate your account to find solutions.
Ask in the Zapier Community. Get advice from experienced Zapier users in the Zapier Community.
Learn more about getting help. Read our guide on how to get help and support with Zapier to find the best resources for your specific problem.

Why are old items triggering my Zap?

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