VTAM® issues this message in response to either the activation of a network node server list at an end node or the entry at an end node of a MODIFY VTAMOPTS,NNSPREF=nodename command. In the first case, the message is displayed when the network node server list being activated does not contain an explicit entry for the current preferred network node server. In the second case, the message is displayed when the network node being defined as this end node's preferred network node server is not explicitly defined in the currently active network node server list.

In both cases, the message indicates that the preferred network node server and the contents of the network node server list member have been merged into a single list.