So, raising a change to move from UI15 to UI16 we were hit with being asked about a roll-back plan. I mean who would want to roll-back to UI15 when UI16 gives you so much more flexibility, well my company needs a back-out plan just in case.
So after much searching with keywords from my title I decided to create this to help others that were in m position.
There appear to be lots of posts about how to rollback but only if your a developer, which is kinda pointless for a whole company. There were also various posts with links to how to make the 'Switch to UI15' button available for all users but the pages in the wiki/docs have been removed.
So here is a very simple way I found to switch back to UI15
As an Admin...
Go to https://YOURINSTANCE.service-now.com/sys_user_preference_list.do?sysparm_query=name%3Duse.concourse%5Euser%3DNULL&sysparm_first_row=1&sysparm_view=#
This shows you the default personal preference for users that can not select what UI they want to see, so for a developer that is on a different UI they would have their own record in the sys_user_preference.list table.
Change the value that is shown to false
Save, get users to log out then in and all sorted. UI15 now in place after the UI16 plugin has been enabled/activated.
NB, if you using the new Chat plugin this will still use the UI16 even after doing the above.
