For more information, see Configuring backup authentication methods and Pre-populating or restricting user registration data.
  1. In the PingID admin portal, go to SETUP > Directory > Attributes.
    A screen capture of the Attributes tab.
  2. If the phoneNumbers attribute is not listed, click Add Attribute and then select the phoneNumbers attribute. Click Add.
    A screen capture of the Add Attribute modal.
    Note:

    This ensures that the relevant phone number attributes appear as options when configuring user details.

  3. Go to SETUP > Dock > Configuration.
  4. In the ATTRIBUTE MAPPING section, from the phoneNumber list, select the phone number attribute you want to use.
    A screen capture of the phoneNumber list.
  5. To add a phone number for a specific user, go to Users > User Directory > Users. For the relevant user entry, click Edit and add the user's phone number to the relevant phone number field. Click Save.
    Note:

    You must enter phone numbers in Google Library format, which specifies that all phone numbers must include "+" and the international country code.