Create the following database views linked to your appropriate database fields.
The length of fields can be adjusted to suit your individual application.
View Name: V_Nav_Parts

View Name: V_Nav_Drawings

View Name: V_Nav_Bom

These views allow the basic software functionality. If you have custom plugins see the associated setup documents for those plugins.
Set up user login permissions according to one of the following supported methods.
Windows Authentication
Custom user name and passwords
All are configured in Drawing Navigator menu Options->External Connections.