Adding Power App Back into Form

[gyongue1]

We moved our list to another Sharepoint site and the form had been customized with PowerApps. It reverted back to the generic form. Do I have to recreate the custom form, or is there a way to somehow copy and past the power app into the generic form if I edit the form in PowerApps?

[naveenwills]

If the columns are same in both the lists, could you change the data sources in your app ?

[gyongue1]

It's actually just a calculator I created to do estimating so nothing is saved.