When you use unique UserIDs the FEPI LUs are assigned and released as modeled in the Service Flow Modeler. The CICS® Service Flow Runtime server run-time makes no attempts to locate and cleanup LUs left assigned upon successful or unsuccessful execution of processes.
Since only the UserID is used for LU assignment and assumed unique in this mode, any and all LUs used and left assigned for the specific UserID can be located and used in the execution of subsequent processes by that UserID.
If FEPI LUs are left assigned in this mode for use in subsequent process execution, the service requestor is responsible to logoff / cleanup LUs for a specific UserID when use of that UserID is no longer required. For example, as a normal end of day processing strategy, the service requestor could invoke a modeled flow as a process to locate, logoff and release any assigned LUs. Failure to incorporate a cleanup strategy for a specific user may not leave LUs available over time to other users — unless the customer configuration is such that a significant number of LUs are available for users requiring access via CICS Service Flow Runtime FEPI processing.