Revert to Out-of-the-box Applications

[wollman2]

At my current institution, we have been using Change Management for over ten years, and we have made several customizations at over the years that have prevented upgrade for many enhancements in the current change management application. We are looking to revert our customizations to Out-of-the-Box standards. 

I have been looking at doing this with Upgrade history, but when I clone my prod environment to a sub-prod, I don't get the upgrade history copied for previous upgrades which make this difficult. It is further complicated because you can't easily filter changes based on application scope since this was an application created before those scopes existed. Comparing my developer instance with my enterprise instance is near impossible as there are so many sys_* tables and hidden tables that make it pretty impossible to compare line by line.

Does anybody out there have any practical experience reverting a customized application to an original state? What were your lessons learned? Any advice?

[wollman2]

kimaly-

In the end, I ended up repairing Chane Management Best Practices and several other plugins, and I went through any skipped updates and reverted them. Additionally, I turned off any custom Business Rules, Client scripts, etc. I restored the form layouts and sections to the original version and compared all the form elements and script logic to an OOB instance like a PDI. It was tedious and lengthy. I'm glad I only had to do it for one app.