Event ID - 15001

Event Id15001
DescriptionAn account could not be created for user <user name>.
Event InformationAccording to Microsoft:

A new user account could not be created in Active Directory due to one of the following reasons:
1. The user who is running migration might not have write permissions to the import container in Active Directory.
2. The global catalog might be unavailable.
3 .The Windows domain controller might have shut down.
User Action :
Verify and obtain the proper permissions for the user running migration. Verify that the global catalog is available, and then restart the domain controller.
Reference LinksAn account could not be created for user

Permissions required to run the Exchange 2000 Server Migration Wizard

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