We just did a migration from Exchange 2007 to Exchange 2013 last night. We are currently running into one issue which is the Free/Busy information when scheduling an appointment is not showing. I changed the EWS on Exchange 2007 to point to legacy.domain.com. I have also checked calendar permissions and re-added the Outlook profile. This issue is happening with everyone in the organization. We are currently running Outlook 2007. Any assistance on this would be great.
Thanks,
Ryan