TSO/E users issue the LOGOFF command to end a session on TSO/E. This TSO/E installation exit lets you customize logoff processing for your users. The exit receives control before the LOGOFF command processor invokes the parse service routine to parse the command. The exit receives control in an authorized state, and receives the standard TSO/E exit parameter list, including a 4-byte user word, if any, supplied at logon by a logon exit. The logoff exit routine can use the parameter list and user word to perform the following functions:

• Free storage obtained by the logon exit
• Control re-logons
• Gather accounting information
• Control information written to the UADS data set