Hi @昂久 和田 ,
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Related references:
https://learn.microsoft.com/en-us/answers/questions/38713/azure-active-directory-not-working-on-microsft-lea.html
https://trainingsupport.microsoft.com/en-us/mcp/forum/mcp_courses-mcp_mslearn/no-access-error-on-learn-sandbox-whilst-accessing/97da2617-8f63-4ff7-bc3e-08361031681b
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