We have created a Search Center Site (Classic SharePoint) using the Enterprise Search Template. We have 80+ sites (SharePoint Online - Modern Team Sites) from where I have to show data in the classic search site.
We want to implement the refiners and advanced search page on the search center site. We have created all Sites Columns and Content Types in Content Type Hub and these site columns and content types are being used in all 80+ sites.
I have a question -
Will we need to set-up/map the crawled properties to the refinable string in each site collection (80+ sites) separately OR can we setup only in the Content Type Hub site collection so that we can avoid setting sep in 80+ sites.