diff --git a/src/ScadaLink.CentralUI/ScriptAnalysis/SandboxHostHelpers.cs b/src/ScadaLink.CentralUI/ScriptAnalysis/SandboxHostHelpers.cs
index 0ba317e..7e9231a 100644
--- a/src/ScadaLink.CentralUI/ScriptAnalysis/SandboxHostHelpers.cs
+++ b/src/ScadaLink.CentralUI/ScriptAnalysis/SandboxHostHelpers.cs
@@ -96,16 +96,9 @@ public class SandboxDatabaseHelper
 /// </summary>
 public class SandboxNotifyHelper
 {
-    private readonly string _instanceName;
-
-    public SandboxNotifyHelper(string instanceName)
-    {
-        _instanceName = instanceName;
-    }
-
     /// <summary>Selects the notification list to send to.</summary>
     public SandboxNotifyTarget To(string listName) =>
-        new(listName, _instanceName);
+        new();
 
     /// <summary>
     /// Queries the delivery status of a previously-sent notification. The
@@ -123,13 +116,8 @@ public class SandboxNotifyHelper
 /// </summary>
 public class SandboxNotifyTarget
 {
-    private readonly string _listName;
-    private readonly string _instanceName;
-
-    internal SandboxNotifyTarget(string listName, string instanceName)
+    internal SandboxNotifyTarget()
     {
-        _listName = listName;
-        _instanceName = instanceName;
     }
 
     /// <summary>
diff --git a/src/ScadaLink.CentralUI/ScriptAnalysis/SandboxScriptHost.cs b/src/ScadaLink.CentralUI/ScriptAnalysis/SandboxScriptHost.cs
index d4027c4..a4a7710 100644
--- a/src/ScadaLink.CentralUI/ScriptAnalysis/SandboxScriptHost.cs
+++ b/src/ScadaLink.CentralUI/ScriptAnalysis/SandboxScriptHost.cs
@@ -80,7 +80,7 @@ public class SandboxInstanceContext
         _gateway = gateway;
         ExternalSystem = external ?? new SandboxExternalHelper(null, "<sandbox>");
         Database = database ?? new SandboxDatabaseHelper(null, "<sandbox>");
-        Notify = notify ?? new SandboxNotifyHelper("<sandbox>");
+        Notify = notify ?? new SandboxNotifyHelper();
         Scripts = scripts ?? new SandboxScriptCallHelper(null);
     }
 
diff --git a/src/ScadaLink.CentralUI/ScriptAnalysis/ScriptAnalysisService.cs b/src/ScadaLink.CentralUI/ScriptAnalysis/ScriptAnalysisService.cs
index a046ec6..cd7dd74 100644
--- a/src/ScadaLink.CentralUI/ScriptAnalysis/ScriptAnalysisService.cs
+++ b/src/ScadaLink.CentralUI/ScriptAnalysis/ScriptAnalysisService.cs
@@ -276,7 +276,7 @@ public class ScriptAnalysisService
         // mirrors production signatures so scripts compile identically, but it
         // does not deliver (production now enqueues into the site S&F engine,
         // which has no central-side equivalent here).
-        var notify = new SandboxNotifyHelper(instanceLabel);
+        var notify = new SandboxNotifyHelper();
 
         var compileCache = new Dictionary<string, Script<object>>(StringComparer.Ordinal);
         var compileCacheLock = new object();