In theory, it is possible that some internal WindowsEnabler/400 dataqueues (WEANSWER, WEREQUEST or WETCP) reach their storage limit. During normal operations, this will probably never happen.
If this happens, you can recreate these dataqueues through the commands <WE_LIB>/DLTWEDTQS (delete the WindowsEnabler/400 dataqueues) and <WE_LIB>/CRTWEDTQS (create the WindowsEnabler/400 dataqueues). These commands are also available on the WindowsEnabler Configuration menu. Deleting and creating new configuration objects also deletes and recreates the WindowsEnabler/400 dataqueues.
You could also create a CL program that is called during IPL that routinely performs these actions.
Warning: when you do this, all pending WindowsEnabler/400 requests and answers will be removed. Before you use this method, please make sure that your users or applications do not depend on pending requests.