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Cannot create a site because an unexpected error occurred (New subsites are not available for your organization)
Cannot create a site because an unexpected error occurred (New subsites are not available for your organization)
Updated over a week ago

Symptoms

You try to migrate a subsite, and you get the following error in your migration report:

Cannot create a site at 'https://x.sharepoint.com/sites/x/x' because an unexpected error occurred.

Error code

  • IN-386-124

Details

You can get this error when your Subsite creation setting is turned off in your SharePoint admin center.

When you migrate a subsite and the Subsite creation setting is turned off, ShareGate Migrate tries to create a new subsite at the destination, and the setting will not allow it.

Solution

You have two options to solve this problem.

If you cannot bypass your organization's policy, you can migrate your subsites as site collections.

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