Hi, anonymous user Thanks for the ask and for using the Microsoft Q&A platform.
We are advising users to use the Az PowerShell module instead of AzureRM. Deprecation has been announced for the AzureRM PowerShell module. I don't believe that there's an Azure PowerShell command for resetting user passwords for an Azure SQL-managed instance.
If you are using Azure AD authentication for your managed instance, you would use the Microsoft Graph PowerShell module to reset the password, however, If you connect to MI you should be able to do something like this:
I don’t expect to see it in one of the MI PS modules because it is not an MI setting but something stored within the master as @Alberto Morillo mentioned.
Regards
Geetha