So I don't have much experience w powerapp... I have a SharePoint list, I want to build an app, just the default gallery, when an item is selected, it would go into the details form (as I want everything to be read-only), then I want to insert a button, when the button is clicked, I want to update one field on this record (with User().FullName), that's it. I just can't seem to make it work... I googled around and somewhere it mentioned the Patch function however I still cannot make that work within the form.
TIA!
WC