diff --git a/WebAPI/Controllers/LayersController.cs b/WebAPI/Controllers/LayersController.cs
index 7c43edd..ec8a143 100644
--- a/WebAPI/Controllers/LayersController.cs
+++ b/WebAPI/Controllers/LayersController.cs
@@ -193,7 +193,7 @@ namespace WebAPI.Controllers
                     .Where(x =>
                         x.Records!.Any(x => x.Code == "Type" && x.Desc1 == "ProcessWorker") &&
                         x.Records!.Any(x => x.Code == "IsEnabled" && x.Desc1 == "True")
-                        //&& x.Number == 262
+                        && x.Number == 268
                         )
                     .OrderBy(x => x.CreatedAt)
                     .ToList();
@@ -253,7 +253,34 @@ namespace WebAPI.Controllers
                                 });
                                 continue;
                             }
-                            T3SourceYearSummaryProcessor processor = new T3SourceYearSummaryProcessor(db, googleSheetValues, this, logsController);
+                            T3SourceYearSummaryProcessor processor = new T3SourceYearSummaryProcessor(db, googleSheetValues, this);
+                            processor.process(processWorker!);
+
+                            logsController.AddEntry(new LogEntry
+                            {
+                                Title = $"{processWorker!.Name}, {processWorker.Id}",
+                                Type = LogEntryType.info,
+                                LogType = LogType.process,
+                                Message = "Success",
+                                CreatedAt = DateTime.UtcNow
+                            });
+                            continue;
+                        }
+                        if (processType == "T3-MultiSourceYearSummary")
+                        {
+                            if (int.Parse(year!) < DateTime.UtcNow.Year)
+                            {
+                                logsController.AddEntry(new LogEntry
+                                {
+                                    Title = $"{processWorker!.Name}, {processWorker.Id}",
+                                    Type = LogEntryType.warning,
+                                    LogType = LogType.process,
+                                    Message = "processLayer is out of date. Should be disabled. Not processed",
+                                    CreatedAt = DateTime.UtcNow
+                                });
+                                continue;
+                            }
+                            T3MultiSourceYearSummaryProcessor processor = new T3MultiSourceYearSummaryProcessor(db, googleSheetValues, this);
                             processor.process(processWorker!);
 
                             logsController.AddEntry(new LogEntry
diff --git a/WebAPI/dataProcessors/t3.MultiSourceYearSummary.processor.cs b/WebAPI/dataProcessors/t3.MultiSourceYearSummary.processor.cs
new file mode 100644
index 0000000..03e0ae9
--- /dev/null
+++ b/WebAPI/dataProcessors/t3.MultiSourceYearSummary.processor.cs
@@ -0,0 +1,115 @@
+using Google.Apis.Sheets.v4;
+using Microsoft.EntityFrameworkCore;
+using WebAPI.Controllers;
+using WebAPI.Models;
+
+namespace WebAPI.dataProcessors
+{
+    public class T3MultiSourceYearSummaryProcessor
+    {
+        private AppDbContext db;
+        private SpreadsheetsResource.ValuesResource googleSheetValues;
+        private LayersController controller;
+
+        public T3MultiSourceYearSummaryProcessor(
+            AppDbContext _db,
+            SpreadsheetsResource.ValuesResource _googleSheetValues,
+            LayersController _controller)
+        {
+            db = _db;
+            googleSheetValues = _googleSheetValues;
+            controller = _controller;
+        }
+
+        public void process(Layer processWorker)
+        {
+            int year = int.Parse(processWorker!.Records?.SingleOrDefault(x => x.Code == "Year")?.Desc1!);
+            List<Record>? sources = processWorker.Records?.Where(x => x.Code == "Source").ToList();
+            if (sources!.Count() == 0)
+            {
+                throw new Exception("Source record not found");
+            }
+
+            Layer? processedLayer = db.Layers
+                                    .Where(x => x.ParentId == processWorker!.Id
+                                                && !x.IsDeleted)
+                                    .OrderByDescending(x => x.CreatedAt)
+                                    .FirstOrDefault();
+
+            bool isNew = false;
+            if (processedLayer == null)
+            {
+                isNew = true;
+                processedLayer = new Layer
+                {
+                    Id = Guid.NewGuid(),
+                    Source = "",
+                    Type = LayerType.processed,
+                    ParentId = processWorker!.Id,
+                    Number = db.Layers.Count() + 1,
+                };
+                processedLayer.Name = $"L{processedLayer.Number}-P-{year}/13-AA-T3";
+                processedLayer.CreatedById = Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D");
+                processedLayer.ModifiedById = Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D");
+                processedLayer.CreatedAt = DateTime.UtcNow;
+                processedLayer.ModifiedAt = DateTime.UtcNow;
+            }
+            processedLayer.Sources = new List<ProcessSource>();
+            processedLayer.ModifiedById = Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D");
+            processedLayer.ModifiedAt = DateTime.UtcNow;
+
+            List<Record> newRecords = new List<Record>();
+
+            List<Layer> dataSources = new List<Layer>();
+
+            foreach (Record source in sources!)
+            {
+                Layer? dataSource = db.Layers.Where(x =>
+                    x.Type == LayerType.processed &&
+                    !x.IsDeleted &&
+                    x.Name.Contains($"{year}/13-{source.Desc1}-T3")
+                    )
+                    .Include(x => x.Records)
+                    .FirstOrDefault();
+                if (dataSource != null)
+                {
+                    dataSources.Add(dataSource);
+                }
+            }
+
+            if (dataSources.Count == 0)
+            {
+                throw new Exception($"DataSources are empty");
+            }
+
+            List<Record> allRecords = dataSources.SelectMany(x => x.Records!).ToList();
+            foreach (Record baseRecord in dataSources.Last()?.Records!)
+            {
+
+                List<Record> codeRecords = allRecords.Where(x =>
+                    x.Code!.Substring(1) == baseRecord.Code!.Substring(1))
+                    .ToList();
+                Record processedRecord = new Record
+                {
+                    Id = Guid.NewGuid(),
+                    Code = $"1{baseRecord.Code}",
+                    CreatedAt = DateTime.UtcNow,
+                    ModifiedAt = DateTime.UtcNow,
+                    Value1 = codeRecords.Sum(x => x.Value1)
+                };
+                newRecords.Add(processedRecord);
+            }
+
+            if (isNew)
+            {
+                db.Layers.Add(processedLayer);
+            }
+            else
+            {
+                db.Layers.Update(processedLayer);
+            }
+            controller.SaveRecords(processedLayer.Id, newRecords, Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D"));
+            db.SaveChanges();
+        }
+    }
+}
diff --git a/WebAPI/dataProcessors/t3.SourceYearSummary.processor.cs b/WebAPI/dataProcessors/t3.SourceYearSummary.processor.cs
index b36faed..f3bd72d 100644
--- a/WebAPI/dataProcessors/t3.SourceYearSummary.processor.cs
+++ b/WebAPI/dataProcessors/t3.SourceYearSummary.processor.cs
@@ -10,19 +10,16 @@ namespace WebAPI.dataProcessors
         private readonly AppDbContext db;
         private readonly SpreadsheetsResource.ValuesResource googleSheetValues;
         private readonly LayersController controller;
-        private readonly LogsController logsController;
 
         public T3SourceYearSummaryProcessor(
             AppDbContext _db,
             SpreadsheetsResource.ValuesResource _googleSheetValues,
-            LayersController _controller,
-            LogsController _logsController
+            LayersController _controller
             )
         {
             db = _db;
             googleSheetValues = _googleSheetValues;
             controller = _controller;
-            logsController = _logsController;
         }
 
         public void process(Layer processWorker)