I am trying to do very simple task in SharePoint site collection. I created a site column and assigned it to a group. Now i want to add newly created site column into existing site content type.
When i go to Site Settings--> Site Content Types--> "Name of Content Type". I no longer have link to add new column in content type. This is what i see:
Then i went to sharepoint designer to do the same task, Now it gives me error saying:
This has never happened to me, I did some research that content types can be set to read only, if that is the case, how we undo read only?