AADSTS700082 – Refresh Token Expired Due to Inactivity
Error: AADSTS700082 – The refresh token has expired due to inactivity
This typically occurs when the customer tenant has an MFA setting that allows "remember MFA for X days", which breaks token refresh after extended inactivity.
Cause: The “remember MFA” setting bypasses full reauthentication for a time, but Microsoft disables the refresh token after 90 days of inactivity — causing Sync 365 access to fail.
Resolution
Disable the “remember MFA for X days” setting in the customer tenant:
- Login to the Microsoft 365 Admin Center
- Go to Users → Multi-Factor Authentication
- Locate the affected user(s)
- Disable the option: "Remember MFA for X days"
Wait ~30 minutes after disabling the option and the error should clear automatically.
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Master Index Page for Troubleshooting Microsoft 365 Errors
Troubleshooting Microsoft 365 Errors If you've received an error in Sync 365 related to authentication, consent, token refresh, or license sync, use the links below to find the exact resolution. Authentication& MFA Errors AADSTS50078 – MFA expired ...