Check user account or set password never expires for a cloud managed user account.
This is not possible for on-premises synced accounts. In this case you control the setting in your local active directory.
Connect to Azure AD.
Start powershell and type Connect-AzureAD
Check expiration policies for a single user:
Get-AzureADUser -ObjectId UPN | Select-Object UserPrincipalName, @{N="PasswordNeverExpires";E={$_.PasswordPolicies -contains "DisablePasswordExpiration"}
}
Set password to never expire for a single user:
Set-AzureADUser -ObjectId [email protected] -PasswordPolicies DisablePasswordExpiration
Close you AAD powershell session by typing Disconnect-AzureAD