I have mods to LSVSUBSC, LSVADD to add an LSV$SUB exit routine, during with anything can be done. The routine is called for all lists, but it is passed the name of the list and the userid@nodeid of the added user. I use it to support AUTO-AFD/AUTO-FUI keywords. There is a similar exit to LSVDEL when a user UNSUBSCRIBES or is DELETEd. If interested, let me know. Harry