[quote='876405022, Pushpak-Ambadkar123, /thread/815498?answerId=876405022#876405022, /profile/Pushpak-Ambadkar123'] can we show any kind of custom error or alert when user tries to open blocked URL in case of URL Filter network ? [/quote] In the URL filter architecture your code isn’t the one making the actual decisions. Rather, your code sets up the filter’s state and the system applies that filter. So your code doesn’t run on the per-URL path and thus can’t do anything on that path. WWDC 2025 Session 234 Filter and tunnel network traffic with NetworkExtension talks more about this and I encourage you to watch it. So, your question is actually “Can we configure the filter to show a custom error?” And AFAICT the answer to that is “No.” However, I think it’d be reasonable for you to file an enhancement request for such a configuration option. If you do file an ER, post your bug number, just for the record. Share and Enjoy — Quinn “The Eskimo!” @ Developer Technical Support @ Apple let myEmail