Hi @Maurice Faraj As per the support case here is the resolution to connect Mi using Azure AD integration
To use Azure AD integration: https://learn.microsoft.com/en-us/azure/azure-sql/database/authentication-aad-configure?tabs=azure-powershell&view=azuresql#active-directory-integrated-authentication
To use Windows Authentication: https://learn.microsoft.com/en-us/azure/azure-sql/managed-instance/winauth-azuread-setup-incoming-trust-based-flow?view=azuresql#create-the-trusted-domain-object
As mentioned you have also created a new azure managed instance and deleted the corrupted one.
Regards
Geetha