Because the roles are no longer calculated at user login, this optimization modifies the dynamic role capability. With the default setting, where the roles are calculated at user login, the user gains or loses role changes at that time. With the new setting, if a dynamic query role changes the results, the user does not immediately get the change. Role changes made by the system administrator will, however, be recognized. In this mode, static roles function correctly with the new setting. Dynamic roles do not return expected changes until an administrator changes role membership or adds a description, or until the various caches time out.

Under optimization, because My webMethods Server does not control group definition, the Group cache is not updated until the cache entry times out or a system restart occurs. If users change group membership frequently, group cache optimization may not be desirable.

The choice of whether to perform role cache or group cache recalculation at login is a trade-off between performance and functionality.