Context extension is the ability to add fields to the form of a locked app imported with a solution. It is configured separately for each app within the solution.
The context extension feature is useful in developing solutions. It gives flexibility to both developers and consumers.
By building this capability into the solution, developers allow administrators to add new fields after importing them into the company and customize the app to meet their unique needs. In this way, the administrator can independently extend the functionality of the apps without waiting for updates from the developer.
At the same time, the risks of problems when releasing new versions of the solution for both parties are minimized. Adding custom properties does not affect the system fields of the app and provides a soft update without causing conflicts between the installed and new versions of the solution.
To learn more about how to enable context extension at the development stage, read the Customize the context extension article. To learn how to add fields to locked app forms, read the Add fields to the extended context article.