If you have a Microsoft Dynamics GP service plan, visit CustomerSource and enter your user name and password, or call (888) 477-7877 and enter your authorization number.
If your Microsoft Dynamics GP service plan has lapsed, contact your local partner for support assistance, or call (888) 477-7877 to purchase per-incident support.
If you are enrolled in Microsoft Services Premier Support or Microsoft Services Essential Support, call (800) 936-3500.