1. Click Configurations.
2. Click +Add.
3. Search for Custom.
4. Select iOS.
5. Click Choose File and select the mobile configuration to upload.
6. Add the attribute name in the Name field.
7. Click Next.
8. Click Custom.
9. Select Devices/Device Groups under Choose one of these custom Distribution Options.
10. Select the Device Groups tab under Select below to distribute this configuration.
11. Enter the attribute name in the search field.
12. Select the attribute name in the list that appears under All Available.
13. Click Done.