I have a status field that is hidden on new mode.  I want to make a notes field required if the status is approved or rejected.  I've tried all the different formulas but when I test it either doesn't make any selection required or it makes all of them even the pending status.

I've also tried to hide the notes field based of the same criteria but it doesn't seem to work.  I've done a lot of searches but nothing comes up about the criteria field being hidden first.

Is it just not possible to have rules based off a hidden field?