I have my home Mac with my personal Apple ID, and I have a work Mac where I use a different dedicated work-only Apple ID. On the work Mac I can load up Books, sign in to the app with my personal Apple ID. I see my entire library, and if I download a book, all previous bookmarks and highlights are in there.
The problem is, if I add a bookmark or highlight on my work Mac, it does not sync anywhere. It only remains on the work device. I believe this is because the work Mac sync does not access my personal iCloud sync. I thought, well I’ll just set up family sharing on my personal ID, add my work Apple ID as a family member, and then both devices will be able to sync to my personal iCloud.
That did not work, it did nothing.
I have been researching and cannot find a solution. Any ideas?