I did the configure hybrid deployment yesterday in Exchange Admin Center. Today, I would like to modify that deployment. When I click Modify to modify that deployment. I got the access denied. It directed me to this page .pod51044.outlook.com. I was able to do that yesterday. I checked permission in Office 365. I am a global admin. I am also a member of the Organization Management group in Exchange.
I also follow this article but it does not work either
Could you please provide me some hints how to fix it?