VTAM® issues this message as part of several different message groups. It is optional and is issued for one of the following reasons:

• In response to a DISPLAY ID command for a TN3270-connected application, CDRSC, or LU resource.
• In response to a DISPLAY ID,IDTYPE=IPADDR command when only one TN3270 client application, CDRSC, or LU is associated with the specified TN3270 client IP address.
• In response to a DISPLAY TSOUSER command for a TN3270-connected application, CDRSC, or LU resource.
• When a session setup fails as part of message group IST663I and the resource is a TN3270-connected application, CDRSC, or LU resource.

If the message ends with the (..) characters, it means that the DNS name was truncated as passed to z/OS® Communications Server from the TN3270 Server. See the z/OS Communications Server: IP Configuration Guide for information about enabling messages.