DFHCE3588 You are already signed on at another terminal. Signon cannot be performed.

Explanation
      You cannot sign on at the current terminal because you are already signed on at another terminal. The SNSCOPE initialization parameter for the CICS system does not allow you to sign on to more than one terminal at a time.

    
System action
      The sign on transaction terminates.

    
User response
      Sign off from the other terminal before you attempt to sign on again.

    
Module
DFHSNP
Destination      
      Terminal End User