One of the most underutilized resources for training is from the MSDN site updated by Microsoft. Instead of paying your consultant for training, train yourself! You’d be surprised at how many so-called “NAV partners” out there that do not know how Dynamics NAV works.
For step by step instructions on each department, click here. Please note that at the time of writing, the manuals are released for NAV 2013R2. I suspect the content will be released for NAV 2015 soon. You can change the content for your specific version by clicking on the Other Versions.
If you’re more into watching videos than reading, MSDN also have a full suite of “How Do I” videos. They can be accessed by clicking here. The videos on here are created by Dynamics NAV MVPs and the product team at Microsoft. The contents on here are more technical than the MSDN help for Dynamics NAV.
Yes, it’s easy to just pick up the phone and call your NAV partner for answers. If you do that, you’re basically asking for a fish. My recommendation to you is teach yourself how to fish.
If you teach yourself how to fish, then your conversation (and your budget utilized) with your NAV partner would be how to make Dynamics NAV better for your company. In all honesty, that’s where you will get the most bang for your buck with your NAV partner.