I'm trying to create a field validation in the Opportunity module that will throw an error when a user tries to change a commit stage from Upside or Commit back to Funnel. When the error is thrown, I expect the commit stage field to be highlighted and…

I have been working on textfield validation and received good professional help in this community. I am grateful how helpful the members are in here. I would like to ask a quick question. I used a PHP debugger and the php aspect works fine, I just needed…