I have a custom list inside a classic team site, and i have defined it to render using new experience, as follow:-

enter image description here

also i customize the list forms using power app as follow:- enter image description here

but if the user click on "return to classic sharepoint" >> they are able to access the classic non-customized New and Edit list forms? any idea what is going on ?

1 Answer 1


It is the by design behavior, because the form created in PowerApps form is only work in new experience.

  • @Lisa Chen MSFT but i am preventing the list from rendering in classic mode,, i specify to only render it in new experience as shown in the image i provided....
    – John John
    Jun 5, 2020 at 12:02
  • There is no setting to prevent a user from entering classic mode.
    – user6024
    Jun 5, 2020 at 16:10
  • @TrevorSeward but we have customized our forms using power apps ,,, so in this case users can switch to classic mode and access the non-customized forms,, there should be a way to force the list forms to only open using power app... is this correct? and what is the reason of having the 2 settings showed in the 2 screens shots i have added in my question...> thanks
    – John John
    Jun 6, 2020 at 15:47
  • There is no way to prevent a user from entering classic.
    – user6024
    Jun 6, 2020 at 16:48
  • @TrevorSeward so in this case should i apply the customization i did inside the powerapp to the classic UI as well!!
    – John John
    Jun 6, 2020 at 17:01

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