An error occurs during site migration:
An error occurred while migrating Site 'xyz.' Creation request for a Site Collection with Url [https://skilledtradesotario.sharepoint.com/sites/xyz] while another Site Collection with the same Url exists in Recycle Bin is not allowed! Use [Remove-SPODeletedSite -Identity https://domain.sharepoint.com/sites/xyz] to clean up that recycled site collection first! Or use [Restore-SPODeletedSite -Identity https://domain.sharepoint.com/sites/xyz] to restore it.
The migration process fails because a site collection with the same URL already exists in the SharePoint Online Recycle Bin. SharePoint does not allow creating a new site collection with a URL that is still associated with a deleted site.
Check the SharePoint Admin Center
Permanently Delete the Site
Alternative PowerShell Commands
Retry Migration
