- You migrate from on-premise to O365. Source and target domain names are the same: company.com.
And the DNS record autodiscover.company.com points to on-premise server.
1. You are passing source and target autodiscover URLs to ODME settings.
You cannot pass the autodiscover url to ODME, there is no such functionality
2. For Migration, all what you can pass to ODME is EWS url and it is enough for migration only.
But for CPUU and switch process, autodiscover service should be working and resolvable
for the target domain company.com in order for switch message to be created.
This is a requirement for CPUU.
So the issue can be that the autodiscover points to the source.
You might bypass this issue if you register every domain externally through DNS for autodiscover