For users setup with MFA (Multi-factor authentication), they will need to create an app password for their account. That app password will be supplied as the password on the CRM mailbox in PEAK 15.
- User visits https://aka.ms/mysecurityinfo
- User signs in with their O365 account credentials
- Under Security Methods, click + Add Method
- Choose App Password
- Give the app password a relevant name
Example: PEAK 15 Mailbox - Once completed, an app password will be generated
- User copies the generated password and supplies it as the password on their mailbox record in CRM
What are App Passwords:
Using app passwords with apps that don't support two-step verification (microsoft.com)
More information regarding MFA: