Does Dynamics 365 financials support custom tables like NAV and custom workflows (codeunits) for business processes?
If Yes, please let me know how to create these?

Does Dynamics 365 financials support custom tables like NAV and custom workflows (codeunits) for business processes?
If Yes, please let me know how to create these?
We have build a very rich toolset for development for Microsoft Dynamics 365 Finance and Operations, Business edition, you can read more about it here aka.ms/GetStartedWithApps
On this page will find instructions how to get started with development, how to get a sandbox etc.
Best regards
Jannik Bausager