we are planning an upgrade of our CRM system from 4.0 to 7.0. but the big question is after we upgrade the server, can our mobile users running mobile sales 4.0 still sync?
we will also be upgrading the mobile environment to the latest client (mobile sales 5.0), but we are not sure if as soon as we upgrade to CRM 7 that the mobile users will no longer be able to sync unless we first upgrade them to 5.0.
our main issue is downtime for the mobile users. hopefully we can upgrade the server to 7.0 and mobile client 4.0 users can still sync until we then follow-up with an upgrade of their client environment.
if you know the answer for this or have any experience doing this, please let me know.