How can I change the phone number to receive a verification code

Tomomi Kikuchi 46 Reputation points

I try to log in to a sharepoint of our partner company in which I've been registered since last year.

Upon log in, a verification code is sent to my old phone number which I'm no longer able to refer to. Even I choose "another option", possible options are all related to this old phone number.
I asked to the partner representative how to change the registered phone number, but they cannot solve it and propose me to reach to Microsoft team.
According to them, it seems that my account is accessing to another MFA than theirs. (I don't understand what it means.)

Could you kindly advise how I can log in to the site?

==error code==
Error Code: 50089
Request Id: 7681aa8d-45e1-4cf4-9bca-ff2b03561f00
Correlation Id: d8ca829f-0027-b000-7515-187294657da7
Timestamp: 2020-10-12T02:07:13Z

Microsoft Entra ID
Microsoft Entra ID
A Microsoft Entra identity service that provides identity management and access control capabilities. Replaces Azure Active Directory.
18,640 questions
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6 answers

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  1. VipulSparsh-MSFT 16,201 Reputation points Microsoft Employee

    @Tomomi Kikuchi Thanks for reaching out. Follow these steps to give it a try :

    1) Sign in to

    2) Select your account name in the top right, then select profile.

    3) Select Additional security verification.

    4) From the How would you like to respond? section of the Additional security verification page, update the phone number information for your Authentication phone (your primary mobile device) and your Office phone.

    5) Select the box next to the Alternate authentication phone option, and then type in a secondary phone number where you can receive phone calls if you can't access your primary device.

    6) Click Save.

    You can also follow for more information.

    If the suggested response helped you resolve your issue, please do not forget to accept the response as Answer and "Up-Vote" for the answer that helped you for benefit of the community.

    2 people found this answer helpful.

  2. Tomomi Kikuchi 46 Reputation points

    Thanks for the detailed guide, I could add my phone numbers as primary and secondary contact.
    Now a verification code is sent to the new number when I log in to my account page, but a verification code is still sent out to my old phone number when I try to log in to the sharepoint site. I don't see my old phone number on my account page, it seems to be stored in a different page but I don't know where..

    2 people found this answer helpful.

  3. Tomomi Kikuchi 46 Reputation points

    Thanks, I've raised a query to local support desk.

    2 people found this answer helpful.

  4. Claudia Katoua 6 Reputation points

    Hi, do you have some news ?

    1 person found this answer helpful.
    0 comments No comments

  5. Colt Lancaste 0 Reputation points

    The did good

    0 comments No comments