InfoPath Dev

 i am working on already existing app that  is not migrated to power apps. I have sharepoint lit with  preparedby  -single line text  and approvedby person field column on form submission I want to save: preparedby  and approvedby the name of the current loggedin user. I tried to use userName() on set fields ...

Currently I am working in power apps but maintaining an existing application. is there a way to make specific info path view accessible for some users and for some other users not accessible (when they try to access it , it will show access denied page). thanks in advance.

 I have an application of infopath. it has 5 views(pages) the last view page has a button to approve or reject. the user will are going to approve or reject on this page are known( 2 users). I want to make the approve or reject button active if  these users are logged in, but for other user it will be disabled or I want to make the ...