I have a checkbox on my form and do not want users to be able to submit the form unless it's checked.

Under my List Settings > Validation Settings I'm using the formula:


but it returns the User Message validation error message regardless if the checkbox is checked or not.

Do I just have an error in my syntax?


Try with:



  • 1
    If Acknowledgement is a Boolean field you can even skip the =TRUE part, as the comparison now is either TRUE=TRUE or FALSE=TRUE – Danny '365CSI' Engelman Feb 3 '17 at 20:42

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