Hello,
I want to implement the vaildation on date field that selected date should be less then today's date in model driven app form.But not able to find the way .Any one could you please help me on this

Hello,
I want to implement the vaildation on date field that selected date should be less then today's date in model driven app form.But not able to find the way .Any one could you please help me on this
You will need to create some Javascript to do that as Business Rules still do not support a Now value
The other option which may be easier would be to install the Bound Date PCF component found at https://pcf.gallery/bounded-datepicker/ and replace the out of the box date field with the Bound Date version.