APPLID

The APPLID is used to identify the instance of the CICS® Universal Client on server connections and tasks in a CICSplex.

Start of changeEnter up to 8 characters, or leave this field blank. There is no restriction on the characters that can be used in APPLID, but to ensure that the APPLID is valid for use in all scenarios, it is advisable to restrict the characters used to be in the range A through Z, and 0 through 9. The character strings entered are converted to uppercase for SNA and TCP/IP connections.End of change

The name must be unique within the CICS server system. The value of blank automatically generates a name that is guaranteed to be unique.