If you have a service plan for Microsoft Dynamics that includes support:
Sign in to CustomerSource
Call 1-888-477-7877 in the US or Canada (local support numbers)
If you're enrolled in Microsoft Services Premier Support:
Sign in to My Premier Online
If you're not enrolled in any of the above service plans or your service plan does not include support:
Go to Microsoft Support
Call 1-800-936-4900 in the US or Canada
Explore service plan options for Microsoft Dynamics NAV
Partners:
Go to Microsoft Partner Network Portal
Or Sign in to PartnerSource
View Microsoft's guidelines for product support from availability to end of product lifecycle.
Microsoft Dynamics NAV 2009 R2
Older versions: View under the previous product name Dynamics NAV and Navision