diff --git a/functions/restart_service.sh b/functions/restart_service.sh
index 4b37cef..e5c6147 100644
--- a/functions/restart_service.sh
+++ b/functions/restart_service.sh
@@ -21,4 +21,5 @@ function restart_service() {
     fi
 
     log_info "Service $SERVICE_NAME successfully restarted and verified."
-}
+    return 0  # Erfolg
+}
\ No newline at end of file
diff --git a/functions/sql_check.sh b/functions/sql_check.sh
index c646813..8be4873 100644
--- a/functions/sql_check.sh
+++ b/functions/sql_check.sh
@@ -19,7 +19,9 @@ function check_sql_activity() {
     if (( (now - last_order_epoch) > 3600 && (now - last_bsi_epoch) > 7200 )); then
         log_critical "SQL activity check failed. No activity in expected timeframes."
         restart_service
+        exit 2  # Fehler, Dienst wurde neu gestartet
     else
         log_info "SQL activity is within acceptable limits."
+        exit 0  # Erfolg
     fi
-}
+}
\ No newline at end of file
diff --git a/vpn_monitor.sh b/vpn_monitor.sh
index 0009899..e300df7 100644
--- a/vpn_monitor.sh
+++ b/vpn_monitor.sh
@@ -1,6 +1,5 @@
 #!/bin/bash
 
-# Source Konfigurations- und Modul-Dateien
 source config.conf
 source functions/logging.sh
 source functions/network_check.sh
@@ -17,7 +16,7 @@ function is_within_business_hours() {
     fi
 }
 
-# Hauptlogik
+# Hauptscript
 function main() {
     log_info "Starting VPN monitoring script."
 
@@ -28,6 +27,9 @@ function main() {
         log_info "Outside business hours. Running SQL activity check."
         check_sql_activity
     fi
+
+    log_info "VPN monitoring script completed successfully."
+    exit 0
 }
 
 main