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Data Carrier Synchronization 
If the users do not have a stable Internet connection, they can synchronize using data carriers such as memory sticks, diskettes and DVDs. The users store the data on a data carrier and send this data to the administrator. You, as the system administrator, can use the Data Carrier Synchronization function to synchronize data carriers with the back-end system that you have received from a user.
The data carrier synchronization has been set up (see Defining Data Carrier Synchronization).
You can synchronize the data carrier that you received from the user with the back-end system. For more information, see Synchronizing Data Carriers with the Back End.
