Adapter engine field blank in RFC Comm channel (Sender)

Hi Friends,
I am not getting any value in drop-down list of adapter engine in RFC adapter sender communication channel.System is allowing me to save the comm channel , system is giving me following error
No adapter engine specified
I m getting values of adapter engine when I select some other adpter like XI.
Thanx
Anand

Hi,
The RfcAdapter is implemented as a J2EE Service and thus this service has to be started and stopped. This will affect the whole RfcAdapter and can be done from the J2EE Engines Visual Administrator. When you are connected to the J2EE Engine choose the tab 'Cluster' and open the appropriate server node in the tree. Then open the 'Services' node. There you can see the entry 'SAP XI Adapter: RFC'. When you open the context menu on this entry you can start and stop the service
Regards
Chilla...

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