Hi @tsun ,
Thanks for confirming. I have double checked with ADX product team if there was any issue during the time you were experiencing this error message and they have confirmed that they had a live site in East US region that prevented users from starting the clusters. The issue was immediately resolved by the product team and ADX cluster start operations were working as expected.
Hope this info helps.
Thank you for your patience and apologizes for your experience because of this issue.
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Thank you
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