Dynamics 365 Business Central supports customization through various methods, allowing businesses to tailor the system to their specific needs:

Extensions: Users can create extensions using AL language in Visual Studio Code. Extensions allow adding new functionality without altering the base application.
Configuration: The system provides configurable settings and parameters, enabling users to modify the system behavior and workflows to fit their processes.
Personalization: Users can personalize their workspace by modifying pages, adding or removing fields, and rearranging layouts to improve efficiency.
AppSource: Users can access Microsoft AppSource to find and integrate third-party applications and add-ons that extend the functionality of Business Central.

These options ensure flexibility and scalability while maintaining the integrity of the core system.