On Nov 16, 2023, at 9:18 AM, Matthew Newton via Freeradius-Users <freeradius-users at lists.freeradius.org> wrote: > Nothing. If you want to enforce the one time use only then you'll need to add some kind of caching (rlm_cache, redis, etc) to check that the same code is not used multiple times. We're also happy to accept patches :) Alan DeKok.