I am using SP2013 on-premise. In order to enhance search experience, I want to enable tagging for all documents. In Site settings -> Site Content Type, I open Document. Then I "add column to existing content type" and pick a custom column XLabel, which is a custom managed metadata column I created. When I save the change, various error come out. For example:
The content type "System Master Page" at "/" is sealed. ... The content type "Page Layout" at "/_catalogs/masterpage" is sealed. Reason:
I found most of document library have added XLabel column and I can search out document thru
owstaxidmetadataalltagsinfo:check. However, I am worry what the error messages mean.
Also I have tried add a site column XLabel to document library. I think the outcome is the same but I need to add column XLabel to all document library one by one. New created document library will not have XLabel. Hence I want to directly change the content type.
Am I doing it wrong? What is the proper way to achieve my goal?