Restarting Error's in SXMB_MONI

Hi AII,

Once there is a error in any message some times its says Systes Error Restart Not Possible..& Some System Errors Restart is allowed

What is the reason is it like Sync message cannot be restarted or only Async message can be restarted.can some one put some light on this ..

but i can Resend all messages in RWB ..what is the resaon.. ?

what happens if i restart a message ..? whether it creates a new message ..or with the same message ID .. ?

Regards

Shakif