diff --git a/.env.template b/.env.template
index 67f531fc..9d884880 100644
--- a/.env.template
+++ b/.env.template
@@ -381,6 +381,8 @@
 ## - "anon-addy-self-host-alias": Enable configuring self-hosted Anon Addy alias generator. (Needs Android >=2025.3.0, iOS >=2025.4.0)
 ## - "simple-login-self-host-alias": Enable configuring self-hosted Simple Login alias generator. (Needs Android >=2025.3.0, iOS >=2025.4.0)
 ## - "mutual-tls": Enable the use of mutual TLS on Android (Client >= 2025.2.0)
+## - "cxp-import-mobile": Enable the import via CXP on iOS (Clients >=2025.9.2)
+## - "cxp-export-mobile": Enable the export via CXP on iOS (Clients >=2025.9.2)
 # EXPERIMENTAL_CLIENT_FEATURE_FLAGS=fido2-vault-credentials
 
 ## Require new device emails. When a user logs in an email is required to be sent.
diff --git a/src/config.rs b/src/config.rs
index 4fb103fa..01badcc8 100644
--- a/src/config.rs
+++ b/src/config.rs
@@ -1046,6 +1046,8 @@ fn validate_config(cfg: &ConfigItems) -> Result<(), Error> {
         "anon-addy-self-host-alias",
         "simple-login-self-host-alias",
         "mutual-tls",
+        "cxp-import-mobile",
+        "cxp-export-mobile",
     ];
     let configured_flags = parse_experimental_client_feature_flags(&cfg.experimental_client_feature_flags);
     let invalid_flags: Vec<_> = configured_flags.keys().filter(|flag| !KNOWN_FLAGS.contains(&flag.as_str())).collect();