diff --git a/src/websocket_server.rs b/src/websocket_server.rs
index 484cfac..d4b7f98 100644
--- a/src/websocket_server.rs
+++ b/src/websocket_server.rs
@@ -82,6 +82,7 @@ struct WebSocketLog {
 
 const WS_LOG_MAX_ENTRIES: usize = 50_000;
 const RIGHT_ADMIN: &str = "admin";
+const RIGHT_MAINADMIN: &str = "mainadmin";
 const RIGHT_WORKER_SCHEDULE: &str = "worker_schedule_read";
 
 async fn append_ws_log(
@@ -704,23 +705,53 @@ async fn handle_connection<S>(
 }
 
 fn user_can_read_worker_schedules(pool: &ConnectionPool, user_id_raw: &str) -> bool {
-    let uid = match user_id_raw.parse::<i32>() {
-        Ok(v) if v > 0 => v,
-        _ => return false,
-    };
-
     let mut conn = match pool.get() {
         Ok(c) => c,
         Err(_) => return false,
     };
 
+    let uid = if let Ok(v) = user_id_raw.parse::<i32>() {
+        if v > 0 { v } else { return false; }
+    } else {
+        // Fallback: setUserId kann auch username/hashed_id aus dem Community-User sein.
+        let resolve_sql = r#"
+SELECT id
+  FROM community."user"
+ WHERE LOWER(username) = LOWER($1::text)
+    OR LOWER(COALESCE(hashed_id, '')) = LOWER($1::text)
+ LIMIT 1;
+"#;
+        if conn.prepare("ws_resolve_community_user_id", resolve_sql).is_err() {
+            return false;
+        }
+        let rows = match conn.execute("ws_resolve_community_user_id", &[&user_id_raw]) {
+            Ok(r) => r,
+            Err(_) => return false,
+        };
+        let Some(row) = rows.first() else {
+            return false;
+        };
+        row.get("id")
+            .and_then(|v| v.parse::<i32>().ok())
+            .filter(|v| *v > 0)
+            .unwrap_or(-1)
+    };
+    if uid <= 0 {
+        return false;
+    }
+
     let sql = r#"
 SELECT EXISTS (
     SELECT 1
       FROM community.user_right ur
       JOIN "type".user_right tr ON tr.id = ur.right_type_id
      WHERE ur.user_id = $1::int
-       AND LOWER(COALESCE(tr.title, '')) IN ($2::text, $3::text)
+       AND (
+            LOWER(TRIM(COALESCE(tr.title, ''))) = $2::text
+            OR LOWER(TRIM(COALESCE(tr.title, ''))) = $3::text
+            OR LOWER(TRIM(COALESCE(tr.title, ''))) = $4::text
+            OR LOWER(COALESCE(tr.title, '')) LIKE '%admin%'
+       )
 ) AS allowed_direct,
 EXISTS (
     SELECT 1
@@ -728,7 +759,12 @@ EXISTS (
       JOIN community.user_right ur ON ur.user_id = fu.user_id
       JOIN "type".user_right tr ON tr.id = ur.right_type_id
      WHERE fu.id = $1::int
-       AND LOWER(COALESCE(tr.title, '')) IN ($2::text, $3::text)
+       AND (
+            LOWER(TRIM(COALESCE(tr.title, ''))) = $2::text
+            OR LOWER(TRIM(COALESCE(tr.title, ''))) = $3::text
+            OR LOWER(TRIM(COALESCE(tr.title, ''))) = $4::text
+            OR LOWER(COALESCE(tr.title, '')) LIKE '%admin%'
+       )
 ) AS allowed_falukant;
 "#;
 
@@ -737,9 +773,10 @@ EXISTS (
     }
     let admin = RIGHT_ADMIN.to_string();
     let allowed_right = RIGHT_WORKER_SCHEDULE.to_string();
+    let mainadmin = RIGHT_MAINADMIN.to_string();
     let rows = match conn.execute(
         "ws_can_read_worker_schedules",
-        &[&uid, &admin, &allowed_right],
+        &[&uid, &admin, &allowed_right, &mainadmin],
     ) {
         Ok(r) => r,
         Err(_) => return false,