How to add validations in a form to avoid empty fields and an existing element?

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Posted on by besthannie

Hello everyone, this is the first time I add validations to a form with conditionals. I have a form where certain fields are disabled for certain users whose PIN value is 2, I added the following in the Displaymode If(varPin = 2, DisplayMode.Edit, DisplayMode.Disabled), but the fields that are enabled can't be sent blank. I already added in the properties that this value is required, but when sending the form, it doesn't submit anything. What can I do in this case?
Also, within this same form there is a field and I would like to know if the value of that field already exists within the SharePoint list called Inventory. If so, don't allow the form to be sent and show a message that the value already exists. Can this be done from Power Apps?
I really appreciate your help in advance!

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timl 36,319 Super User 2025 Season 2 on at

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How to add validations in a form to avoid empty fields and an existing element?

Hi

If you want to update an existing record on a form but unable to do so, you could try using DisplayMode.View, which makes the card read only rather than disabled.

If(varPin = 2, DisplayMode.Edit, DisplayMode.View)

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