UltraLite Static Java User's Guide
  Synchronization Parameters Reference
    Synchronization parameters

send_download_ack synchronization parameter

Function 

Set this boolean parameter to false to instruct the MobiLink synchronization server that the client will not provide a download acknowledgement.

If the client does send download acknowledgement, the MobiLink synchronization server worker thread must wait for the client to apply the download. If the client does not sent a download acknowledgement, the MobiLink synchronization server is freed up sooner for its next synchronization.

Access methods 

This parameter is not available for UltraLite Java applications.