Question
Subdomain is automatically generated for new Office 365 subscriptions.
sitelog message is:
INFO aps_endpoint: TenantsController.Post. InitialSubdomain company12345 is generated. Create account and offers.
What is the reason of such behavior?
Answer
Prefix for Naming Subscriptions application instance property value is specified.
Please refer to the Creating 'Office 365' Application Instance documentation article for additional details.