1. Invalid phone number error in Azure AD Authentication methods page. If the format is incorrect, an error message will be displayed as shown in Fig. It will have to consist of a country code, a space and the rest of the phone number provided without spaces: +1 2223334445 If MFA or SSPR is enabled for the given user and a telephone number is used for sending authentication messages, Azure Active Directory will enforce a specific format of that phone number when entering it in the Authentication methods page. In that case, the phone number in Azure Active Directory must consist of a country code, a space and the rest of the phone number provided without spaces: +1 2223334445 Phone number in the Authentication methods page MFA, SSPR) in Microsoft 365, Azure Active Directory becomes the source of this phone number and the on-premises Active Directory mobile phone field is no longer synchronized. If any service requiring the phone number is active (e.g. This situation may occur in a hybrid environment, which includes Microsoft 365 (with Azure AD) and an on-premises Active Directory that stores user profile information. Country code added to a phone number in email signatures If that’s the case, the number has to be provided in the specified format. It is enforced when any functionality using the mobile phone field in the Azure AD is active. The phone number restriction is built into the Azure portal. Azure Active Directory will enforce the use of a correct phone number consisting of a country code, a space, and the rest of the phone number provided without spaces: +1 2223334445 In this case, a specific phone number format is required for Microsoft services to work correctly. In the left navigation pane, go to Billing > Purchase services > Add-ons > See all Add-ons products. This is usually the account you used to sign up for Microsoft 365. Open the Microsoft 365 admin center and log in with a user that is a Global admin. Phone number in the Authentication methods page If you have Resource Account licenses, they'll appear as Microsoft Teams Phone Resource Account.Country code added to phone number in email signatures.In the paragraphs below, we explain what happens in more detail. A problem like these may occur if you have Multi Factor Authentication (MFA) and/or self-service password reset (SSPR) enabled in your organization and if you set up to use the user’s phone number for authentication. Instead, they occur because of the specific way in which Microsoft solutions handle phone numbers. You entered a phone number in your on-premises Active Directory without the country code, but when the phone number is inserted into your email signature, a country code is added.īoth situations mentioned above are not related to CodeTwo software. When trying to enter a user’s phone number in Azure Active Directory, you get the error message:. You encounter one or both of the following problems: How to solve problems related to phone numbers in Azure Active Directory
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