Good morning, @damjan. 

I appreciate you coming to the Community with your question about syncing QuickBooks Desktop with Microsoft Dynamics 365 Business Central.  I've got the information you need to answer your question. 

I can see how beneficial this would be for you and your business. However, the only way you can sync QuickBooks with Microsoft Dynamics 365 Business Central is by using the Online version of our product. Although this is the case, I'll send feedback to our Product Developers. They'll be able to consider this in one of the upcoming releases. They take the time to review each request and try to collaborate them in the next available update.  

In the meantime, you can check out the QuickBooks Blog to keep up with what's new in the system. 

I hope this answers your question. I value you and the success of your business. Should you need any further insight, feel free to ask. I'm only a comment away if you need me. Have a great day!