When a single user has multiple devices, the user’s data is duplicated in your Mobility system. To control data duplication and improve performance, you can control the number of devices that each user is allowed to connect to your Mobility system.
By default, each user can connect to your Mobility system with as many devices as he or she wants. When you set the maximum limit, a user who is above the limit is not prevented from connecting with existing devices. However, the user cannot connect with any additional devices until the number of devices is within the limit that you have set.
In the Mobility Admin console, click Config, then click Device to display the Device Sync Agent Configuration page.
In the Maximum Devices per User field, set the maximum number of devices that each user can connect with.
To remove an existing limit, delete the number for an unlimited number of devices.
Click Save to save the new setting(s).
Restart the Mobility Service:
gms restart