diff --git a/src/Eurofurence.App.Server.Services/Abstractions/ArtShow/AgentClosingNotificationResult.cs b/src/Eurofurence.App.Server.Services/Abstractions/ArtShow/AgentClosingNotificationResult.cs
new file mode 100644
index 00000000..6c217594
--- /dev/null
+++ b/src/Eurofurence.App.Server.Services/Abstractions/ArtShow/AgentClosingNotificationResult.cs
@@ -0,0 +1,15 @@
+using System.Collections.Generic;
+
+namespace Eurofurence.App.Server.Services.Abstractions.ArtShow
+{
+    public class AgentClosingNotificationResult
+    {
+        public int AgentBadgeNo { get; set; }
+        public string AgentName { get; set; }
+        public string ArtistName { get; set; }
+        public decimal TotalCashAmount { get; set; }
+        public int ExhibitsSold { get; set; }
+        public int ExhibitsUnsold { get; set; }
+        public int ExhibitsToAuction { get; set; }
+    }
+}
\ No newline at end of file
diff --git a/src/Eurofurence.App.Server.Services/Abstractions/ArtShow/IAgentClosingResultService.cs b/src/Eurofurence.App.Server.Services/Abstractions/ArtShow/IAgentClosingResultService.cs
index 205ffe51..85168e48 100644
--- a/src/Eurofurence.App.Server.Services/Abstractions/ArtShow/IAgentClosingResultService.cs
+++ b/src/Eurofurence.App.Server.Services/Abstractions/ArtShow/IAgentClosingResultService.cs
@@ -6,8 +6,12 @@ namespace Eurofurence.App.Server.Services.Abstractions.ArtShow
 {
     public interface IAgentClosingResultService
     {
-        Task ImportAgentClosingResultLogAsync(TextReader logReader);
+        Task<ImportResult> ImportAgentClosingResultLogAsync(TextReader logReader);
 
         Task ExecuteNotificationRunAsync();
+
+        Task<IList<AgentClosingNotificationResult>> SimulateNotificationRunAsync();
+
+        Task DeleteUnprocessedImportRowsAsync();
     }
 }
diff --git a/src/Eurofurence.App.Server.Services/Abstractions/ArtShow/IItemActivityService.cs b/src/Eurofurence.App.Server.Services/Abstractions/ArtShow/IItemActivityService.cs
index 9799142a..cffe5b9c 100644
--- a/src/Eurofurence.App.Server.Services/Abstractions/ArtShow/IItemActivityService.cs
+++ b/src/Eurofurence.App.Server.Services/Abstractions/ArtShow/IItemActivityService.cs
@@ -6,9 +6,10 @@ namespace Eurofurence.App.Server.Services.Abstractions.ArtShow
 {
     public interface IItemActivityService
     {
-        Task ImportActivityLogAsync(TextReader logReader);
+        Task<ImportResult> ImportActivityLogAsync(TextReader logReader);
 
         Task<IList<ItemActivityNotificationResult>> SimulateNotificationRunAsync();
         Task ExecuteNotificationRunAsync();
+        Task DeleteUnprocessedImportRowsAsync();
     }
 }
\ No newline at end of file
diff --git a/src/Eurofurence.App.Server.Services/Abstractions/ArtShow/ImportResult.cs b/src/Eurofurence.App.Server.Services/Abstractions/ArtShow/ImportResult.cs
new file mode 100644
index 00000000..ab89eb77
--- /dev/null
+++ b/src/Eurofurence.App.Server.Services/Abstractions/ArtShow/ImportResult.cs
@@ -0,0 +1,12 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace Eurofurence.App.Server.Services.Abstractions.ArtShow
+{
+    public class ImportResult
+    {
+        public int RowsImported { get; set; }
+        public int RowsSkippedAsDuplicate { get; set; }
+    }
+}
diff --git a/src/Eurofurence.App.Server.Services/ArtShow/AgentClosingResultService.cs b/src/Eurofurence.App.Server.Services/ArtShow/AgentClosingResultService.cs
index b5816fb7..4f3a3591 100644
--- a/src/Eurofurence.App.Server.Services/ArtShow/AgentClosingResultService.cs
+++ b/src/Eurofurence.App.Server.Services/ArtShow/AgentClosingResultService.cs
@@ -33,24 +33,30 @@ IPrivateMessageService privateMessageService
             _privateMessageService = privateMessageService;
         }
 
-        public async Task ImportAgentClosingResultLogAsync(TextReader logReader)
+        public async Task<ImportResult> ImportAgentClosingResultLogAsync(TextReader logReader)
         {
+            var importResult = new ImportResult();
+
             try
             {
                 await _semaphore.WaitAsync();
-
+                
                 var csv = new CsvReader(logReader, CultureInfo.CurrentCulture);
 
                 csv.Configuration.RegisterClassMap<AgentClosingResultImportRowClassMap>();
                 csv.Configuration.Delimiter = ",";
                 csv.Configuration.HasHeaderRecord = false;
 
-                var csvRecords = csv.GetRecords<AgentClosingResultImportRow>().ToList();
+                var csvRecords = await csv.GetRecordsAsync<AgentClosingResultImportRow>().ToListAsync();
 
                 foreach (var csvRecord in csvRecords)
                 {
                     var existingRecord = await _agentClosingResultRepository.FindOneAsync(a => a.ImportHash == csvRecord.Hash.Value);
-                    if (existingRecord != null) continue;
+                    if (existingRecord != null)
+                    {
+                        importResult.RowsSkippedAsDuplicate++;
+                        continue;
+                    }
 
                     var newRecord = new AgentClosingResultRecord()
                     {
@@ -69,21 +75,28 @@ public async Task ImportAgentClosingResultLogAsync(TextReader logReader)
                     newRecord.Touch();
 
                     await _agentClosingResultRepository.InsertOneAsync(newRecord);
+                    importResult.RowsImported++;
                 }
             }
             finally
             {
                 _semaphore.Release();
             }
+
+            return importResult;
         }
 
+        private Task<IEnumerable<AgentClosingResultRecord>> GetUnprocessedImportRows()
+            => _agentClosingResultRepository.FindAllAsync(a => a.NotificationDateTimeUtc == null);
+
+
         public async Task ExecuteNotificationRunAsync()
         {
             try
             {
                 await _semaphore.WaitAsync();
 
-                var newNotifications = await _agentClosingResultRepository.FindAllAsync(a => a.NotificationDateTimeUtc == null);
+                var newNotifications = await GetUnprocessedImportRows();
 
                 var tasks = newNotifications.Select(result => SendAgentClosingResultNotificationAsync(result));
 
@@ -123,5 +136,31 @@ private async Task SendAgentClosingResultNotificationAsync(AgentClosingResultRec
 
             await _agentClosingResultRepository.ReplaceOneAsync(result);
         }
+
+        public async Task<IList<AgentClosingNotificationResult>> SimulateNotificationRunAsync()
+        {
+            var newNotifications = await GetUnprocessedImportRows();
+
+            return newNotifications
+                .Select(item => new AgentClosingNotificationResult()
+                {
+                    AgentBadgeNo = item.AgentBadgeNo,
+                    AgentName = item.AgentName,
+                    ArtistName = item.ArtistName,
+                    ExhibitsSold = item.ExhibitsSold,
+                    ExhibitsUnsold = item.ExhibitsUnsold,
+                    ExhibitsToAuction = item.ExhibitsToAuction
+                })
+                .ToList();
+
+        }
+
+        public async Task DeleteUnprocessedImportRowsAsync()
+        {
+            var recordsToDelete = await GetUnprocessedImportRows();
+
+            foreach (var record in recordsToDelete)
+                await _agentClosingResultRepository.DeleteOneAsync(record.Id);
+        }
     }
 }
\ No newline at end of file
diff --git a/src/Eurofurence.App.Server.Services/ArtShow/ItemActivityService.cs b/src/Eurofurence.App.Server.Services/ArtShow/ItemActivityService.cs
index bb448c6c..b91eeab3 100644
--- a/src/Eurofurence.App.Server.Services/ArtShow/ItemActivityService.cs
+++ b/src/Eurofurence.App.Server.Services/ArtShow/ItemActivityService.cs
@@ -33,8 +33,9 @@ IPrivateMessageService privateMessageService
             _privateMessageService = privateMessageService;
         }
 
-        public async Task ImportActivityLogAsync(TextReader logReader)
+        public async Task<ImportResult> ImportActivityLogAsync(TextReader logReader)
         {
+            var importResult = new ImportResult();
             var csv = new CsvReader(logReader, CultureInfo.CurrentCulture);
 
             csv.Configuration.RegisterClassMap<LogImportRowClassMap>();
@@ -46,7 +47,11 @@ public async Task ImportActivityLogAsync(TextReader logReader)
             foreach (var csvRecord in csvRecords)
             {
                 var existingRecord = await _itemActivityRepository.FindOneAsync(a => a.ImportHash == csvRecord.Hash.Value);
-                if (existingRecord != null) continue;
+                if (existingRecord != null)
+                {
+                    importResult.RowsSkippedAsDuplicate++;
+                    continue;
+                }
 
                 var newRecord = new ItemActivityRecord()
                 {
@@ -63,9 +68,14 @@ public async Task ImportActivityLogAsync(TextReader logReader)
                 newRecord.Touch();
 
                 await _itemActivityRepository.InsertOneAsync(newRecord);
+                importResult.RowsImported++;
             }
+
+            return importResult;
         }
 
+        private Task<IEnumerable<ItemActivityRecord>> GetUnprocessedImportRows()
+            => _itemActivityRepository.FindAllAsync(a => a.NotificationDateTimeUtc == null);
 
         private class NotificationBundle
         {
@@ -76,7 +86,7 @@ private class NotificationBundle
 
         private async Task<IList<NotificationBundle>> BuildNotificationBundlesAsync()
         {
-            var newActivities = await _itemActivityRepository.FindAllAsync(a => a.NotificationDateTimeUtc == null);
+            var newActivities = await GetUnprocessedImportRows();
 
             return newActivities
                 .GroupBy(a => a.OwnerUid)
@@ -192,5 +202,13 @@ public async Task<IList<ItemActivityNotificationResult>> SimulateNotificationRun
                 })
                 .ToList();
         }
+
+        public async Task DeleteUnprocessedImportRowsAsync()
+        {
+            var recordsToDelete = await GetUnprocessedImportRows();
+
+            foreach (var record in recordsToDelete)
+                await _itemActivityRepository.DeleteOneAsync(record.Id);
+        }
     }
 }
diff --git a/src/Eurofurence.App.Server.Services/Eurofurence.App.Server.Services.csproj b/src/Eurofurence.App.Server.Services/Eurofurence.App.Server.Services.csproj
index b8804f06..b23fcf34 100644
--- a/src/Eurofurence.App.Server.Services/Eurofurence.App.Server.Services.csproj
+++ b/src/Eurofurence.App.Server.Services/Eurofurence.App.Server.Services.csproj
@@ -23,6 +23,7 @@
     <PackageReference Include="SixLabors.ImageSharp" Version="1.0.2" />
     <PackageReference Include="SixLabors.ImageSharp.Drawing" Version="1.0.0-beta0005" />
     <PackageReference Include="System.IdentityModel.Tokens.Jwt" Version="6.8.0" />
+    <PackageReference Include="System.Linq.Async" Version="6.0.1" />
     <PackageReference Include="Telegram.Bot" Version="15.7.1" />
   </ItemGroup>
   <ItemGroup>
diff --git a/src/Eurofurence.App.Server.Web/Controllers/ArtShowController.cs b/src/Eurofurence.App.Server.Web/Controllers/ArtShowController.cs
index 9f8f0086..2a2c0b3d 100644
--- a/src/Eurofurence.App.Server.Web/Controllers/ArtShowController.cs
+++ b/src/Eurofurence.App.Server.Web/Controllers/ArtShowController.cs
@@ -27,50 +27,141 @@ IApiPrincipal apiPrincipal
             _apiPrincipal = apiPrincipal;
         }
 
-        [Authorize(Roles = "System,Developer")]
+        /// <summary>
+        /// Import Art Show results for bidders (CSV)
+        /// </summary>
+        /// <remarks>
+        /// Imports the Art Show result CSV for bidders (`RegNo, ASIDNO, ArtistName, ArtPieceTitle, Status ["Sold", Auction"]`).<br /><br />
+        /// There's a row-hash built from the mentioned import fields. If a row with the same hash is already present, it will be skipped.
+        /// (Importing the same data multiple times does not lead to duplicates.)
+        /// </remarks> 
+        [Authorize(Roles = "System,Developer,ArtShow")]
         [HttpPost("ItemActivites/Log")]
         [ProducesResponseType(201)]
         [BinaryPayload(Description = "Art show log contents")]
-        public async Task<ActionResult> ImportActivityLogAsync()
+        public Task<ImportResult> ImportActivityLogAsync()
         {
-            await _itemActivityService.ImportActivityLogAsync(new StreamReader(Request.Body));
-            return NoContent();
+            return _itemActivityService.ImportActivityLogAsync(new StreamReader(Request.Body));
         }
 
-        [Authorize(Roles = "System,Developer")]
+        /// <summary>
+        /// Simulate notification bundle generation for bidders.
+        /// </summary>
+        /// <remarks>
+        /// Simulates building notification bundles that group all item results (sold, to auction) by the bidder who holds the winning/highest bid. <br /><br />
+        /// The simulation data shows individual notifications for every bidder (`RecipientUid`), listing the items they won (`IdsSold`)
+        /// as well as items going into auction (`IdsToAuction`) with their current bid on top. <br /><br />
+        /// <b>Calling this endpoint does not modify any data and does not send any messages.</b>
+        /// </remarks> 
+        [Authorize(Roles = "System,Developer,ArtShow")]
         [HttpGet("ItemActivites/NotificationBundles/Simulation")]
         [ProducesResponseType(200)]
-        public Task<IList<ItemActivityNotificationResult>> SimulateNotificationRunAsync()
+        public Task<IList<ItemActivityNotificationResult>> SimulateItemActivitiesNotificationRunAsync()
         {
             return _itemActivityService.SimulateNotificationRunAsync();
         }
 
-        [Authorize(Roles = "System,Developer")]
+
+        /// <summary>
+        /// Execute/Send notification bundles for bidders.
+        /// </summary>
+        /// <remarks>
+        /// Builds notification bundles that group all item results (sold, to auction) by the bidder who holds the winning/highest bid. <br /><br />
+        /// <b><u>Calling this endpoint will produce and queue all notifications/messages for delivery. Notifications are sent asynchronously and in queue,
+        /// so full delivery may take a few minutes.</u></b>
+        /// </remarks> 
+        [Authorize(Roles = "System,Developer,ArtShow")]
         [HttpPost("ItemActivites/NotificationBundles/Send")]
-        [ProducesResponseType(200)]
+        [ProducesResponseType(204)]
         public async Task<ActionResult> ExecuteNotificationRunAsync()
         {
             await _itemActivityService.ExecuteNotificationRunAsync();
             return NoContent();
         }
 
-        [Authorize(Roles = "System,Developer")]
+
+        /// <summary>
+        /// Delete unprocessed rows
+        /// </summary>
+        /// <remarks>
+        /// Deletes any imported data for which no notification has been sent yet.<br /><br />
+        /// <b>Use this to remove imported data if the simulation does not check out.</b>
+        /// </remarks>
+        [Authorize(Roles = "System,Developer,ArtShow")]
+        [HttpDelete("ItemActivites/NotificationBundles/:unprocessed")]
+        [ProducesResponseType(204)]
+        public async Task<ActionResult> DeleteUnprocessedItemActivitiesImportRowsAsync()
+        {
+            await _itemActivityService.DeleteUnprocessedImportRowsAsync();
+            return NoContent();
+        }
+
+
+        /// <summary>
+        /// Import Art Show results for agents (CSV)
+        /// </summary>
+        /// <remarks>
+        /// Imports the Art Show result CSV for agents (`AgentBadgeNo, AgentName, ArtistName, TotalCashAmount, ExhibitsSold, ExhibitsUnsold, ExhibitsToAuction`).<br /><br />
+        /// There's a row-hash built from the mentioned import fields. If a row with the same hash is already present, it will be skipped.
+        /// (Importing the same data multiple times does not lead to duplicates.)
+        /// </remarks> 
+        [Authorize(Roles = "System,Developer,ArtShow")]
         [HttpPost("AgentClosingResults/Log")]
         [ProducesResponseType(201)]
         [BinaryPayload(Description = "Agent closing result log contents")]
-        public async Task<ActionResult> ImportAgentClosingResultLogAsync()
+        public Task<ImportResult> ImportAgentClosingResultLogAsync()
         {
-            await _agentClosingResultService.ImportAgentClosingResultLogAsync(new StreamReader(Request.Body));
-            return NoContent();
+            return _agentClosingResultService.ImportAgentClosingResultLogAsync(new StreamReader(Request.Body));
         }
 
-        [Authorize(Roles = "System,Developer")]
-        [HttpPost("AgentClosingResults/NotificationBundles/Send")]
+        /// <summary>
+        /// Simulate notification bundle generation for agents.
+        /// </summary>
+        /// <remarks>
+        /// Simulates building notification going towards agents. <br /><br />
+        /// The simulation data shows individual notification data for every agent (`AgentBadgeNo`).<br /><br />
+        /// <b>Calling this endpoint does not modify any data and does not send any messages.</b>
+        /// </remarks> 
+        [Authorize(Roles = "System,Developer,ArtShow")]
+        [HttpGet("AgentClosingResults/NotificationBundles/Simulation")]
         [ProducesResponseType(200)]
+        public Task<IList<AgentClosingNotificationResult>> SimulateAgentClosingResultsNotificationRunAsync()
+        {
+            return _agentClosingResultService.SimulateNotificationRunAsync();
+        }
+
+
+        /// <summary>
+        /// Execute/Send notification bundles for agents.
+        /// </summary>
+        /// <remarks>
+        /// Builds notifications for all agents.<br /><br />
+        /// <b><u>Calling this endpoint will produce and queue all notifications/messages for delivery. Notifications are sent asynchronously and in queue,
+        /// so full delivery may take a few minutes.</u></b>
+        /// </remarks> 
+        [Authorize(Roles = "System,Developer,ArtShow")]
+        [HttpPost("AgentClosingResults/NotificationBundles/Send")]
+        [ProducesResponseType(204)]
         public async Task<ActionResult> ExecuteAgentNotificationRunAsync()
         {
             await _agentClosingResultService.ExecuteNotificationRunAsync();
             return NoContent();
         }
+
+        /// <summary>
+        /// Delete unprocessed rows
+        /// </summary>
+        /// <remarks>
+        /// Deletes any imported data for which no notification has been sent yet.<br /><br />
+        /// <b>Use this to remove imported data if the simulation does not check out.</b>
+        /// </remarks>
+        [Authorize(Roles = "System,Developer,ArtShow")]
+        [HttpDelete("AgentClosingResults/NotificationBundles/:unprocessed")]
+        [ProducesResponseType(204)]
+        public async Task<ActionResult> DeleteUnprocessedAgentClosingResultsImportRowsAsync()
+        {
+            await _agentClosingResultService.DeleteUnprocessedImportRowsAsync();
+            return NoContent();
+        }
     }
 } 
\ No newline at end of file