I'm having issues with AD Connect filtering.
I've added a new forest and am migrating users to it. Users are part of the same tenant. I've already got everything working and migrations appear to work.
I do have Exchange 2019 on site and configured to support the remote commands and general admin of groups.
The only thing I haven't done is the hybrid configuration wizard for the new Exchange server as I thought it wasn't needed to support the creation of users. So far it appears it hasn't.
I am facing an issue though where AD Connect is not filtering AD Objects that I've setup to filter. I'm using the Exchange Attributes to filter out items I don't want synced. All works fine in the Forest I originally setup AD Connect in and have a hybrid joined Exchange 2013 server.
I'm trying to find any other steps I'd need to take but come up short.
Do I have to have a hybrid exchange configuration in the new forest in order to get AD Connect to filter Exchange Attributes?