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Some duplicate entries in SharePoint list when using "when an event is added, updated or deleted"

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Posted on by LauraleeG

I have a flow that takes events from a shared calendar that are assigned a specific flag and adds them to a SharePoint list. It works most of the time but every now and then there is a duplicate entry in the SharePoint list, I use the calendar id in the flow to check if it needs to be updated or created but for some reason the flow misses a few and I end up with duplicates, it's not every item just random items.

Is there an additional step I can put in to check or even a way to go through and delete the duplicates as part of the flow? I've got screenshots of the flow below

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Building flows

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ManishSolanki 15,091 Super User 2025 Season 2 on at

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Hi,

I would suggest setting up separate flows for add & update operation. You need to design 2 separate flow each using specific trigger for add & modify operation:

The trigger with combine operations (add & modify) has some issues with duplicate trigger.

Thanks

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Riyaz_riz11 3,878 Super User 2025 Season 2 on at

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Hi,

As mention like Manish you can use that approach, and best approach for the future, try to get items and check with unique id the same event present or not if not then create items else nothing.

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Regards,
Riyaz

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