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Update Item action (SharePoint) fields reset blank values to "No" randomly



When using the SharePoint Update Item action with a list containing Yes/No columns, you need to remove "No" from the Update Item action fields to prevent the list items values being overwritten with "No". This is counterintuitive, as all other columns are empty by default, thus not causing an update on the item... but that's an issue for another post.


At some point during my testing the flow, the fields in the Update Item action got reset back to "No", unintentionally updating all the values on an list item previously being ignored.


As I've been unable to figure out how this happened, I'm unable to trust Flow to not do it again in the future and destroy live data. 

Does anyone know how this could have happened?

Community Support
Community Support

Re: Update Item action (SharePoint) fields reset blank values to "No" randomly


Hi @Sams ,


Could you share the details of the Flow configuration?


If other actions can get the value of the corresponding field of the current item, then you can use that Dynamic content to configure this field, so you can avoid similar errors.


Best Regards,

Community Support Team _ Barry
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