Allow content type mappings in copy structure
I have had some issue with site content types, specifically Custom and/or Publishing CTs (such as pages and other page layouts) not mapping correctly
Fred Larssen commented
Definitely. Both content types and properties.
Have a look here: https://feedback.sharegate.com/forums/912880-sharegate-desktop-suggestions/suggestions/16437697-map-property-on-a-site-object-migration
Voted for this one as I came across this problem when migrating sites with lots of sub-site content. Though I've still achieved what I wanted with site columns being available to the search experience and use refiners in classic mode.
Thanks to James McClymont for highlighting this suggestion.
Yan Beauchamp commented
It isn't possible to map content types during a whole site migration. Is this something that we want to look into?