Looking for logging into the Microsoft Business Center site and are not getting the correct working link for it? In such a case, you can use the links given here by searching your desired login page in the search box. If the page is present on our website then you will get all the links related to the Microsoft Business Center site. After that you can login as usual with your login credentials.
https://www.microsoft.com/ja-jp/licensing/existing-customer/business-center-training-and-resources.aspx
https://businessaccount.microsoft.com/
https://www.microsoft.com/ja-jp/licensing/mpsa/default
https://mvlc.blob.core.windows.net/ja-jp/MVLC_QS_Register_for_the_Volume_Licensing_Center.pdf
https://www.ipentec.com/document/software-vlsc-msdn-license
https://products.office.com/en-us/business/office
https://www.licensingschool.co.uk/wp-content/uploads/2016/05/Business-Center-FAQ-March-2016.pdf
https://licenseonline.bbss.co.jp/Office365Open/step1_20130927.pdf
http://www.google.co.jp/url?url=http://microsoftvolumelicensing.com/downloader.aspx%3Fdocumenttype%3DMPSALM%26lang%3DEnglish
https://support.cybersource.com/s/article/I-am-unable-to-log-in-to-my-Business-Center-account
https://www.techsoupjapan.org/ms_vl
https://btbusiness.custhelp.com/app/answers/detail/a_id/40392/~/how-do-i-log-in-to-the-office-365-admin-centre%253F
https://office365.uservoice.com/forums/600793-office-365-business-center