// End of Shift operations process
CashRegisterActivityCompletion completion  = ^(NSArray <WDCashActivity *> * _Nullable cashActivities, NSError * _Nullable cashActivitiesError){
    // cashActivities List of Cash In/Out activities for the specified Shift and Cash Register
};

// Additional Query details such as page ,page size
WDQuery *query = [[WDQuery alloc ] initWithPage:0 pageSize:20];

[sdk.cashManager getOperationsForShift:@"ShiftID" // Shift for which to query the activities
                                 query:query // additional query details
               belongingToCashRegister:@"CashRegisterInteralID" // The selected Cash Register internal ID
                            completion:completion]; // End of Shift activities process