Business application internal structure can be created in the Business Application Internal Structure folder created by default. The folder with internal structure is used to place all custom and service objects of the application and it is not displayed for web application users.
To create a business application internal structure:
Select parent folder in the Business Application Internal Structure folder.
To create a folder, click the New Folder button in the Create group on the Home ribbon tab.
Enter folder name:
The folder structure can be hierarchical, with no limits on the number of nesting levels.
To move the created folder to another location, drag and drop it.
After the application internal structure has been created, add objects to configured folders.
See also:
Building Business Application | Adding Objects to Internal Structure