Data Validation

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Posted on by CU26111206-0

Hello,

Can you use Power Apps to validate user input against data in a database, i.e. if I ask for them to provide an email address, it must correspond to one we have in our database?

Thanks,

James

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Power Apps Pro Dev & ISV

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mmbr1606 14,629 Super User 2026 Season 1 on at

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hey

yes u can do this for example with this:

LookUp(DataSource, Email = TextInput1.Text)

if you want to show a error message for example you can use:

If(IsBlank(LookUp(DataSource, Email = TextInput1.Text)), "Email not found", "Email verified")

if it was helpful please mark as verified answer

cheers

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