A dynamic entity is not a fully-loaded entity, but is linked to an external data source. If that data changes (for example, the existing source file is overwritten with a modified file of the same name), you can refresh the data view in the Control Center and see the updated data.
To view the contents of an updated dynamic entity source file
On the Discover bar, click Entities. A list of all real and dynamic entities opens.
Double-click the dynamic entity you want to refresh. The Data Rows (Dynamic) List View refreshes, showing the content of the updated source file.
Re-run any entity business rules associated with the entity.