The following error will be prompted if you wish to perform an on-premise synchronisation to Azure Active Directory environment. See the following guide on how to integrate your on-premise AD to Azure AD.
This error is because, the Global Administrators password has not been verified yet as shown below.
To resolve this issue, simple open a web browser https://azure.microsoft.com/en-us/ and you will be requested
– Click on Sign-in and enter your initial password and and
– Enter your new password
You the password has been verified and you can perform the synchronisation
Now the error is no longer present as shown below.
For the following links for similar https://docs.microsoft.com/en-us/azure/active-directory/hybrid/tshoot-connect-connectivity#user-password-expired
I hope you found this blog post helpful. If you have any questions, please let me know in the comment session.