IDOC status "Message scheduled on outbound side"
I am working on scenario file->XI->SAP R/3(Using IDOC). I am getting outbound status of IDOC as "Message Scheduled on Outbound side". When I go and see SM58 for user WF-BATCH there exists a entry with status Transcation Recorded". In SM58 if I manually click Execute LUW then only I am getting an IDOC posted in my R/3 box, but this should happen automatically.
Can any one tell me what should I do so that it gets executed automatically?
Thanks In Advance.