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@ChunInseop
Currently in Microsoft Q&A we only support English, could you please edit your question into English?This action could help us understand your issue better, thanks for your understanding.
Through the translation tool, I get the content on following image.
How many Global admins in your organization?
Do you mean that you forget the only one Global admin account your organization has?
If yes, you'd better contact Microsoft directly to confirm this issue.
As this issue is beyond the support of Q&A forum. Thanks for your understanding.
Hope the information could help you. Any misunderstanding, please feel free to post back.
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