'Blueprint Assignment with user-assigned managed identity at management group scope

I have created a blueprint at management scope. I want to assign blueprint as stated in the document.

But I have this error:

('blueprint_assign_response', u'{"error":{"code":"MissingSubscription","message":"The request did not have a subscription or a valid tenant level resource provider."}}')

managed identity has blueprint operator permission.

Any advice would be appreciated.



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