I have a hybrid setup with on premise 2010 SP3 to O365 Wave 15 and on premise 2013. I am getting close to having all mailboxes moved off of 2010 and either into the cloud or onto the on premise 2013 server. Once this process is complete, how do i decommission the 2010 server and move the hybrid config to 2013? I have tried to run the hybrid config wizard on 2013 to upgrade the hybrid, but it fails with the error "ERROR : Subtask Configure execution failed: Upgrading hybrid configuration from Exchange 2010...No Inbound connector found on the Office 365 tenant. at Microsoft.Exchange.Management.Hybrid.UpgradeConfigurationFrom14Task.UpgradeFopeConnectors(ITaskContext taskContext) at Microsoft.Exchange.Management.Hybrid.UpgradeConfigurationFrom14Task.Configure(ITaskContext taskContext) at Microsoft.Exchange.Management.Hybrid.Engine.ExecuteSubStep(String subStepName, ITaskContext taskContext, ITask task, Func`3 substep, Func`4 createException, Boolean throwOnFalse)"
There is an inbound connector in our O365 tenant that was upgraded from FOPE to EOP by the Wave 15 upgrade. Our hybrid config works. I want to make sure that it continues to work after i decomm the 2010 server. My final intent is to maintain our on premise 2013 server in hybrid config with our O365 tenant as i have some mailboxes that need to remain on premise.