Microsoft maintains a number of support options for the Dynamics family of products; CRM, AX, NAV, GP and SL (Customer Relationship Management, Axapta, Navision, Great Plains and Solomon respectively).
Most enhancement plans come bundled with Microsoft Technical Support incidents. For customers current on their enhancement plans there is a searchable Knowledge Base (KB), which is an excellent source of support and how-to information.
There are more blogs, you-tube channels and online forums than can easily be counted, most offering their services free of charge, as-is, no warranties. There are excellent User Groups, and lest we forget the stalwart Partner and Independent Software Vendor channels.
If you are the type of person who starts troubleshooting with a healthy dose of Internet search engine, then you've probably already discovered the Dynamics community sites.
If you have stopped at merely reading content and implementing recommendations, then you are missing out on a resource of limitless potential.
Every day, some of the brightest minds in the Dynamics community answer questions posed to them by Dynamics customers and partners who pay nothing for the service. These questions range wildly from the simple to the complex, and typically result in numerous suggestions/options to help resolve the issue at hand in a timely fashion.
If you haven't joined the Community, please consider doing so. You can find out more, and sign up at the following link: