@ECHO OFF
cls

SET SOURCE="C:\DOCUMENTS"
if not exist %SOURCE% SET MISSING=%SOURCE% & GOTO ERR1

SET DEST="\\SERVER\BACKUP"
if not exist %DEST% md %DEST%
if not exist %DEST% set MISSING=%DEST% & GOTO ERR1

xcopy %SOURCE% %DEST% /D /E /C /I /G /H /R /Y /J
pause
goto END

:ERR1
cls
echo Unable to locate %MISSING%
pause
goto END

:END
exit