Microsoft 365 has two basic managed path you can use, /Teams and /Sites.
You perform a Microsoft 365 Group migration, and you get this error:
The Microsoft 365 group was created using the wrong managed path. This may happen if you changed the Team Site default managed path recently since it takes several minutes to take effect. Please try again later.
When you change the default managed path in your SharePoint admin center it takes minutes to be effective. If you do a migration before the change is fully propagated in your environment, your Microsoft 365