diff --git a/.gitignore b/.gitignore
index 61d23209..93728e20 100644
--- a/.gitignore
+++ b/.gitignore
@@ -363,4 +363,5 @@ MigrationBackup/
 .ionide/
 
 # Fody - auto-generated XML schema
-FodyWeavers.xsd
\ No newline at end of file
+FodyWeavers.xsd
+/PARR.AIHITRelationshipsSyncerWorker/MockData.json
diff --git a/PARR.AIHITRelationshipsSyncer/AihitRelationshpsSyncerInstaller.cs b/PARR.AIHITRelationshipsSyncer/AihitRelationshpsSyncerInstaller.cs
index 1b6939fb..60afd7ed 100644
--- a/PARR.AIHITRelationshipsSyncer/AihitRelationshpsSyncerInstaller.cs
+++ b/PARR.AIHITRelationshipsSyncer/AihitRelationshpsSyncerInstaller.cs
@@ -29,7 +29,7 @@ namespace PARR.AIHITRelationshipsSyncer
 
             services.AddTransient<IRelationshipsSyncer, RelationshipsSyncer>();
             services.AddTransient<IAihitService, AihitService>();
-            services.AddTransient<IRelationshipsSyncService, RelationshipsSyncSrevice>();
+            services.AddTransient<IRelationshipsSyncService, RelationshipsSyncService>();
         }
 
 
diff --git a/PARR.AIHITRelationshipsSyncer/Context/AIHITContext.cs b/PARR.AIHITRelationshipsSyncer/Context/AIHITContext.cs
index 529660cd..6a9be518 100644
--- a/PARR.AIHITRelationshipsSyncer/Context/AIHITContext.cs
+++ b/PARR.AIHITRelationshipsSyncer/Context/AIHITContext.cs
@@ -9,5 +9,17 @@ namespace PARR.AIHITRelationshipsSyncer.Context
 
 
         public DbSet<AihitData> AihitDatas { get; set; }
+
+        protected override void OnModelCreating(ModelBuilder modelBuilder)
+        {
+            //Делаем это чтобы EF не пытался трекать объкты полученые из хранимой процедуры
+            base.OnModelCreating(modelBuilder);
+
+            modelBuilder.Entity<AihitData>(entity =>
+            {
+                entity.HasNoKey();
+                entity.ToView(null);
+            });
+        }
     }
 }
diff --git a/PARR.AIHITRelationshipsSyncer/Models/AihitData.cs b/PARR.AIHITRelationshipsSyncer/Models/AihitData.cs
index f61e0961..590df0b2 100644
--- a/PARR.AIHITRelationshipsSyncer/Models/AihitData.cs
+++ b/PARR.AIHITRelationshipsSyncer/Models/AihitData.cs
@@ -3,11 +3,11 @@ using System.ComponentModel.DataAnnotations.Schema;
 
 namespace PARR.AIHITRelationshipsSyncer.Models
 {
-    [PrimaryKey(nameof(EKFindCode), nameof(ChildEk))]
-    public class AihitData
+    [PrimaryKey(nameof(ParentName), nameof(ChildName))]
+    public record AihitData
     {
         [Column("КОД_ПОИСКА_ЭК")]
-        public string? EKFindCode { get; set; }
+        public string? ParentName { get; set; }
 
         //[Column("СТАТУС")]
         //public string? Status { get; set; }
@@ -21,6 +21,6 @@ namespace PARR.AIHITRelationshipsSyncer.Models
         //[Column("ТИП_ЭК")]
         //public string? EKType { get; set; }
         [Column("Дочерний ЭК")]
-        public string? ChildEk { get; set; }
+        public string? ChildName { get; set; }
     }
 }
diff --git a/PARR.AIHITRelationshipsSyncer/RelationshipsSyncer.cs b/PARR.AIHITRelationshipsSyncer/RelationshipsSyncer.cs
index 787e4546..f63915ff 100644
--- a/PARR.AIHITRelationshipsSyncer/RelationshipsSyncer.cs
+++ b/PARR.AIHITRelationshipsSyncer/RelationshipsSyncer.cs
@@ -1,7 +1,9 @@
 using Microsoft.Extensions.Logging;
+using PARR.AIHITRelationshipsSyncer.Models;
 using PARR.AIHITRelationshipsSyncer.Services.Interfaces;
 using PARR.AIHITRelationshipsSyncer.Settings;
 using PARR.BLL.Services.Interfaces;
+using System.Text.Json;
 
 namespace PARR.AIHITRelationshipsSyncer
 {
@@ -39,21 +41,62 @@ namespace PARR.AIHITRelationshipsSyncer
                 {
                     logger.LogInformation($"Начата загрузка иерархических связей между ЭК из АИХ ИТ");
 
-                    var aihitdata = aihitService.GetData();
+                    List<AihitData>? aihitDataList = null;
 
-                    var aihitDataCount = aihitdata?.Count();
+#if DEBUG
+                    const string mockFilePath = "MockData.json";
 
-                    if (aihitdata == null || aihitDataCount == 0)
+                    //Пытаемся загрузить mock-данные
+                    if (File.Exists(mockFilePath) && new FileInfo(mockFilePath).Length > 0)
+                    {
+                        logger.LogInformation("Загрузка данных из mock-файла: {MockFile}", mockFilePath);
+                        try
+                        {
+                            var json = await File.ReadAllTextAsync(mockFilePath);
+                            aihitDataList = JsonSerializer.Deserialize<List<AihitData>>(json, new JsonSerializerOptions { PropertyNameCaseInsensitive = true });
+                            logger.LogInformation("Mock-данные успешно загружены");
+                        }
+                        catch (Exception ex)
+                        {
+                            logger.LogWarning(ex, "Не уадлось десериализовать {MockFile}. Будет выполнен запрос в базу АИХ ИТ", mockFilePath);
+                            aihitDataList = null;
+                        }
+                    }
+
+                    if (aihitDataList == null)
+                    {
+                        logger.LogInformation("Выполнение запроса в АИХ ИТ в режиме отладки");
+                        var rawData = aihitService.GetData();
+                        aihitDataList = rawData?.ToList();
+
+                        if (aihitDataList != null && aihitDataList.Count > 0)
+                        {
+                            try
+                            {
+                                var json = JsonSerializer.Serialize(aihitDataList, new JsonSerializerOptions { WriteIndented = true });
+                                await File.WriteAllTextAsync(mockFilePath, json);
+                                logger.LogInformation("Данные сохранены в {MockFile} для будущей отладки", mockFilePath);
+                            }
+                            catch (Exception ex)
+                            {
+                                logger.LogWarning(ex, "Не удалось сохранить данные в {MockFile}", mockFilePath);
+                            }
+                        }
+                    }
+#else
+                    //Release
+                    var rawData = aihitService.GetData();
+                    aihitDataList = rawData?.ToList();
+#endif
+
+                    if (aihitDataList == null || aihitDataList.Count == 0)
                     {
                         logger.LogInformation("АИХ ИТ вернул пустые данные");
                         return;
                     }
 
-                    //File.WriteAllText("MockData.json", aihitdata.ToJson());
-                    //string text = File.OpenText("MockData.json").ReadToEnd();
-                    //var aihitdata = JsonSerializer.Deserialize<List<AihitData>>(text);
-
-                    await relationshipsSyncService.SyncAsync(aihitdata.ToList());
+                    logger.LogInformation("Получено {EkCount} записей для синхронизации", aihitDataList.Count);
+                    await relationshipsSyncService.SyncAsync(aihitDataList);
 
                 }
                 catch (Exception ex)
diff --git a/PARR.AIHITRelationshipsSyncer/Services/Implementations/RelationshipsSyncService.cs b/PARR.AIHITRelationshipsSyncer/Services/Implementations/RelationshipsSyncService.cs
new file mode 100644
index 00000000..61785cbb
--- /dev/null
+++ b/PARR.AIHITRelationshipsSyncer/Services/Implementations/RelationshipsSyncService.cs
@@ -0,0 +1,236 @@
+using Microsoft.EntityFrameworkCore;
+using Microsoft.Extensions.Logging;
+using PARR.AIHITRelationshipsSyncer.Models;
+using PARR.AIHITRelationshipsSyncer.Services.Interfaces;
+using PARR.AIHITRelationshipsSyncer.Settings;
+using PARR.DAL.Models.Unit;
+using PARR.DAL.Services.Interfaces.Unit;
+
+namespace PARR.AIHITRelationshipsSyncer.Services.Implementations
+{
+    internal class RelationshipsSyncService : IRelationshipsSyncService
+    {
+        private readonly ILogger<RelationshipsSyncService> logger;
+        private readonly IUnitService unitService;
+        private readonly WorkerSettings workerSettings;
+
+        public RelationshipsSyncService(
+            ILogger<RelationshipsSyncService> logger,
+            IUnitService unitService,
+            WorkerSettings workerSettings
+            )
+        {
+            this.logger = logger;
+            this.unitService = unitService;
+            this.workerSettings = workerSettings;
+        }
+
+
+        public async Task SyncAsync(List<AihitData> aihitdata)
+        {
+            var validPairs = ValidateInput(aihitdata);
+            if (!validPairs.Any()) return;
+
+            var sourceUnitNames = ExtractUnitNames(validPairs);
+            var existingUnits = await GetOrCreateUnitsAsync(sourceUnitNames);
+
+            var (toRemove, toAdd) = await GetDeltaAsync(validPairs);
+
+            await RemoveRelationshipsAsync(toRemove);
+            await AddRelationshipsAsync(toAdd, existingUnits);
+
+            await FinalCommitAsync(toRemove.Count, toAdd.Count);
+        }
+
+        private List<(string Parent, string Child)> ValidateInput(List<AihitData> data)
+        {
+            if (data == null || data.Count == 0)
+            {
+                logger.LogWarning("Получены пустые или null данные из АИХ ИТ. Пропускаю синхронизацию");
+                return null!;
+            }
+
+            var validPairs = data
+                            .Where(t => !string.IsNullOrWhiteSpace(t.ParentName) && !string.IsNullOrWhiteSpace(t.ChildName))
+                            .Where(t => t.ParentName != t.ChildName)
+                            .Select(t => (
+                                Parent: t.ParentName!.Trim().ToUpperInvariant(),
+                                Child: t.ChildName!.Trim().ToUpperInvariant()
+                            ))
+                            .Distinct()
+                            .ToList();
+            if (validPairs.Count == 0)
+            {
+                logger.LogWarning("После нормализации не осталось валидных связей. Пропускаю синхронизацию");
+                return new();
+            }
+
+            logger.LogInformation("Получено {Count} валидных связей", validPairs.Count);
+            return validPairs;
+        }
+
+
+        private static List<string> ExtractUnitNames(List<(string Parent, string Child)> pairs)
+        {
+            return pairs
+                    .SelectMany(x => new[] { x.Parent, x.Child })
+                    .Distinct()
+                    .ToList();
+        }
+
+
+        private async Task<Dictionary<string, Unit>> GetOrCreateUnitsAsync(List<string> names)
+        {
+            var existing = await unitService.Get()
+                                    .AsNoTracking()
+                                    .ToDictionaryAsync(u => u.Name, StringComparer.Ordinal);
+
+            var missing = names.Except(existing.Keys).ToList();
+            if (!missing.Any()) return existing;
+
+            logger.LogInformation("Создание отсутствующих Unit:{Count}", missing.Count);
+            foreach (var name in missing)
+            {
+                var unit = new Unit
+                {
+                    Id = Guid.NewGuid(),
+                    Name = name,
+                    DateCreated = DateTimeOffset.UtcNow
+                };
+
+                if (await unitService.CreateAsync(unit))
+                {
+                    logger.LogInformation("Создан Unit: {Name}", name);
+                    existing[name] = unit;
+                }
+                else
+                    logger.LogError("Не удалось создать Unit: {Name}", name);
+            }
+
+            await unitService.CommitAsync();
+            return existing;
+        }
+
+
+        private async Task<(List<ExistingRelationship> ToRemove, List<(string, string)> ToAdd)> GetDeltaAsync(List<(string Parent, string Child)> sourcePairs)
+        {
+            var allExistings = await unitService.Get()
+                                    .AsNoTracking()
+                                    .Include(u => u.ChildUnits).ThenInclude(r => r.ChildUnit)
+                                    .Where(u => u.ChildUnits.Any())
+                                    .SelectMany(u => u.ChildUnits, (parent, relationship) => new ExistingRelationship
+                                    {
+                                        ParentName = parent.Name,
+                                        ChildName = relationship.ChildUnit!.Name,
+                                        Relationship = relationship
+                                    }
+                                    )
+                                    .ToListAsync();
+
+            var sourceSet = new HashSet<(string, string)>(sourcePairs);
+            var existingSet = new HashSet<(string, string)>(allExistings.Select(x => (x.ParentName, x.ChildName)));
+
+            var toRemove = allExistings.Where(r => !sourceSet.Contains((r.ParentName, r.ChildName))).ToList();
+            var toAdd = sourcePairs.Where(p => !existingSet.Contains(p)).ToList();
+
+            logger.LogInformation("Связей для удаления: {ToRemove}, для добавления: {ToAdd}", toRemove.Count, toAdd.Count);
+            return (toRemove, toAdd);
+        }
+
+
+        private async Task RemoveRelationshipsAsync(List<ExistingRelationship> toRemove)
+        {
+            if (!toRemove.Any()) return;
+
+            var parentNames = toRemove.Select(r => r.ParentName).Distinct().ToList();
+
+            var parents = await unitService.Get()
+                                .Include(u => u.ChildUnits)
+                                .Where(u => parentNames.Contains(u.Name))
+                                .ToDictionaryAsync(u => u.Name, StringComparer.Ordinal);
+
+            foreach (var rel in toRemove)
+            {
+                if (!parents.TryGetValue(rel.ParentName, out var parent))
+                {
+                    logger.LogWarning("Родитель '{Parent}' не найден при попытке удаления связи - '{Child}'", rel.ParentName, rel.ChildName);
+                    continue;
+                }
+
+                var relationshipToRemove = parent.ChildUnits
+                                                .FirstOrDefault(r => r.ChildUnitId == rel.Relationship.ChildUnitId);
+
+                if (relationshipToRemove != null)
+                {
+                    logger.LogInformation("Удаление связи: '{Parent}' - '{Child}'", rel.ParentName, rel.ChildName);
+                    parent.ChildUnits.Remove(relationshipToRemove);
+                }
+                else
+                {
+                    logger.LogWarning("Связь '{Parent}'-'{Child}' не найдена в коллекции ChildUnits для удаления", rel.ParentName, rel.ChildName);
+                }
+            }
+        }
+
+        private async Task AddRelationshipsAsync(List<(string Parent, string Child)> toAdd, Dictionary<string, Unit> allUnits)
+        {
+            if (!toAdd.Any()) return;
+
+            var parentNames = toAdd.Select(x => x.Parent).Distinct().ToList();
+            var parents = await unitService.Get()
+                                    .Include(u => u.ChildUnits)
+                                    .Where(u => parentNames.Contains(u.Name))
+                                    .ToDictionaryAsync(u => u.Name, StringComparer.Ordinal);
+
+            foreach (var (Parent, Child) in toAdd)
+            {
+                if (!parents.TryGetValue(Parent, out var parent) ||
+                    !allUnits.TryGetValue(Child, out var child))
+                {
+                    logger.LogWarning("Пропущена связь '{Parent}' - '{Child}': Unit не найден", Parent, Child);
+                    continue;
+                }
+
+                if (parent!.ChildUnits.Any(r => r.ChildUnitId == child.Id))
+                {
+                    logger.LogWarning("Связь уже существует: '{Parent}' - '{Child}'", Parent, Child);
+                    continue;
+                }
+
+                parent.ChildUnits.Add(new UnitInUnit
+                {
+                    ParentUnitId = parent.Id,
+                    ChildUnitId = child.Id,
+                    DateCreated = DateTimeOffset.UtcNow
+                });
+
+                logger.LogInformation("Добавлена связь: '{Parent}' - '{Child}'", Parent, Child);
+            }
+        }
+
+
+        private async Task FinalCommitAsync(int removedCount, int addedCount)
+        {
+            if (removedCount > 0 || addedCount > 0)
+            {
+                if (await unitService.CommitAsync())
+                {
+                    logger.LogInformation("Синхронизация завершена. Удалено: {Removed}, добавлено: {Added}", removedCount, addedCount);
+                }
+                else
+                    logger.LogError("Не удалось сохранить изменения в БД");
+            }
+            else
+                logger.LogInformation("Изменений не обнаружено");
+        }
+
+        private sealed class ExistingRelationship
+        {
+            public string ParentName { get; init; }
+            public string ChildName { get; init; }
+            public UnitInUnit Relationship { get; init; }
+        }
+
+    }
+}
+
diff --git a/PARR.AIHITRelationshipsSyncer/Services/Implementations/RelationshipsSyncSrevice.cs b/PARR.AIHITRelationshipsSyncer/Services/Implementations/RelationshipsSyncSrevice.cs
deleted file mode 100644
index ddaf30f8..00000000
--- a/PARR.AIHITRelationshipsSyncer/Services/Implementations/RelationshipsSyncSrevice.cs
+++ /dev/null
@@ -1,219 +0,0 @@
-using Microsoft.EntityFrameworkCore;
-using Microsoft.Extensions.Logging;
-using PARR.AIHITRelationshipsSyncer.Models;
-using PARR.AIHITRelationshipsSyncer.Services.Interfaces;
-using PARR.AIHITRelationshipsSyncer.Settings;
-using PARR.DAL.Models.Unit;
-using PARR.DAL.Services.Interfaces.Unit;
-using System.Reactive;
-using Unit = PARR.DAL.Models.Unit.Unit;
-
-namespace PARR.AIHITRelationshipsSyncer.Services.Implementations
-{
-    internal class RelationshipsSyncSrevice : IRelationshipsSyncService
-    {
-        private readonly ILogger<RelationshipsSyncSrevice> logger;
-        private readonly IUnitService unitService;
-        private readonly WorkerSettings workerSettings;
-
-        public RelationshipsSyncSrevice(ILogger<RelationshipsSyncSrevice> logger,
-            IUnitService unitService,
-            WorkerSettings workerSettings
-            )
-        {
-            this.logger = logger;
-            this.unitService = unitService;
-            this.workerSettings = workerSettings;
-        }
-
-
-        public async Task SyncAsync(List<AihitData> aihitdata)
-        {
-            var groupedData = aihitdata.Where(t => t.EKFindCode != null && t.ChildEk != null).GroupBy(ad => ad.EKFindCode);
-            //var i = 0;
-            //var c = groupedData.Count();
-
-            var onlyUpdateTransactionCount = 0;
-            //Перебираем сгруппированные по родительскому ЭК данные
-            foreach (var parrent in groupedData)
-            {
-                //i = i+1;
-
-                //Получаем имя родителя
-                var parentName = parrent.First().EKFindCode;
-
-                //По имени получаем экземпляр Unit со всеми дочерними связями
-                var unit = await GetUnitByNameAsync(parentName!);
-
-                if (unit == null)
-                {
-                    logger.LogError($"Не удалось получиться родительский ЭК по имени{parentName}");
-                    return;
-                }
-
-                //Из данных АИХ ИТ получаем имена всех дочерних ЭК
-                var childsName = parrent.Where(t => t.ChildEk != parentName && t.ChildEk != null).Select(t => t.ChildEk);
-
-                childsName = childsName.Select(t => t?.Trim()).Distinct();
-
-                //Проходим циклом по полученному списку для актуализации связей в полученном нами экземпляре Unit
-                var isChanged = await SyncChildSUnitAsync(unit, childsName);
-
-                if (!isChanged) onlyUpdateTransactionCount = ++onlyUpdateTransactionCount;
-
-                //logger.LogInformation($"Обработка № {i.ToString()} из {c}. Выполнено только обновление поля DateSynced - {onlyUpdateTransactionCount}");
-
-                if (onlyUpdateTransactionCount == workerSettings.CommitAfter)
-                {
-                    //применяем изменения в базе данных
-                    if (!await unitService.CommitAsync())
-                        logger.LogError($"Не удалось изменить связи Unit после {workerSettings.CommitAfter} обновлений поля DateSynced");
-                    else
-                        logger.LogDebug($"----- Изменены связи Unit после {workerSettings.CommitAfter} обновлений поля DateSynced  -----");
-                    onlyUpdateTransactionCount = 0;
-                }
-                //применяем изменения в базе данных
-                if (isChanged && !await unitService.CommitAsync())
-                    logger.LogError($"Не удалось изменить связи Unit {unit.Name}");
-                else
-                    logger.LogDebug($"----- Изменены связи Unit: {unit.Name}  -----");
-            }
-
-            //Удаляем детей у тех кого детей в выборке АИХ ИТ не оказалось
-            await RemoveWasteRelationships(groupedData);
-
-            //применяем изменения в базе данных
-            if (!await unitService.CommitAsync())
-                logger.LogError($"Не удалось удалить лишние связи");
-            else
-                logger.LogInformation($"-----  Иереархические связи актуализированы -----");
-        }
-
-        private async Task RemoveWasteRelationships(IEnumerable<IGrouping<string?, AihitData>> groupedData)
-        {
-            var parentNames = groupedData.Select(t => t.Key?.ToLower().Trim());
-
-            var units = await unitService.Get()
-                .Include(t => t.ChildUnits).ToListAsync();
-
-            var parentsToDeleteChild = units.Where(t => parentNames.All(a => t.Name.ToLower() != a) && t.ChildUnits.Any());
-
-            if (parentsToDeleteChild.Any())
-            {
-                foreach (var unit in parentsToDeleteChild)
-                {
-                    DeleteChilds(unit, unit.ChildUnits);
-                }
-            }
-        }
-
-        private async Task<bool> SyncChildSUnitAsync(Unit unit, IEnumerable<string?> childsName)
-        {
-            var isChanged = false;
-
-            //удаляем лишние дочерние связи существующие только в БД
-            var childsToDelete = unit.ChildUnits.Where(t => !childsName.Any(a => t.ChildUnit?.Name.ToLower() == a!.ToLower()));
-            if (childsToDelete.Any())
-            {
-                DeleteChilds(unit, childsToDelete);
-                if (!isChanged)
-                    isChanged = true;
-            }
-
-            //проверяем отсутсвующие связи
-            var absentChildrens = childsName.Where(c => !unit.ChildUnits.Any(x => x.ChildUnit?.Name.ToLower() == c?.ToLower()));
-            foreach (var absentChildren in absentChildrens)
-            {
-                var childUnit = await GetUnitByNameAsync(absentChildren!);
-                if (childUnit == null)
-                {
-                    logger.LogError($"Ошибка получения дочернего ЭК. Из базы пришел NULL для ЭК{absentChildren}");
-                    return false;
-                }
-
-                if (unit.ChildUnits.Any(x => x.ChildUnitId == childUnit.Id))
-                    logger.LogWarning($"Попытка создать существующую связь для {unit.Name} - {childUnit.Name}");
-                else
-                {
-                    unit.ChildUnits.Add(
-                        new UnitInUnit
-                        {
-                            ParentUnitId = unit.Id,
-                            ChildUnitId = childUnit.Id,
-                            DateCreated = DateTimeOffset.UtcNow,
-                        }
-                    );
-                    logger.LogInformation($"----- Создана связь Unit {unit.Name} - {childUnit.Name}-----");
-                }
-
-                if (!isChanged)
-                    isChanged = true;
-            }
-
-            foreach (var child in unit.ChildUnits)
-            {
-                child.DateSynced = DateTimeOffset.UtcNow;
-            }
-            return isChanged;
-        }
-
-
-        /// <summary>
-        /// Удаление дочерних связей у ЭК
-        /// </summary>
-        /// <param name="unit"></param>
-        /// <param name="unitToDeleteChilds"></param>
-        private void DeleteChilds(Unit unit, IEnumerable<UnitInUnit> unitToDeleteChilds)
-        {
-            foreach (var childUnit in unitToDeleteChilds)
-            {
-                logger.LogInformation($"----- Удаление связи Unit: {unit.Name} -----");
-                unit.ChildUnits.Remove(childUnit);
-            }
-        }
-
-
-        /// <summary>
-        /// Создать новый ЭК по имени
-        /// </summary>
-        /// <param name="ekName"></param>
-        /// <returns></returns>
-        private async Task<Unit?> CreateUnit(string ekName)
-        {
-            var unit = new Unit
-            {
-                Name = ekName.Trim()
-            };
-
-            if (!await unitService.CreateAsync(unit))
-            {
-                logger.LogError($"Не удалось создать Unit {unit.Name}");
-                return null;
-            }
-            else
-            {
-                logger.LogInformation($"----- Создан Unit: {unit.Name}  -----");
-                return unit;
-            }
-        }
-
-
-        /// <summary>
-        /// Получить ЭК с дочерними связями по имени, если такого ещё нет создать
-        /// </summary>
-        /// <param name="ekName"></param>
-        /// <returns></returns>
-        private async Task<Unit?> GetUnitByNameAsync(string ekName)
-        {
-            if (!unitService.Get().AsNoTracking().Any(u => u.Name.ToLower() == ekName.ToLower().Trim()))
-            {
-                return await CreateUnit(ekName);
-            }
-
-            return await unitService.Get()
-                .Include(u => u.ChildUnits)
-                    .ThenInclude(t => t.ChildUnit)
-                .FirstAsync(u => u.Name.ToLower() == ekName.ToLower().Trim());
-        }
-    }
-}
diff --git a/PARR.AIHITRelationshipsSyncerWorker/appsettings.Development.json b/PARR.AIHITRelationshipsSyncerWorker/appsettings.Development.json
index b2dcdb67..a8276f5c 100644
--- a/PARR.AIHITRelationshipsSyncerWorker/appsettings.Development.json
+++ b/PARR.AIHITRelationshipsSyncerWorker/appsettings.Development.json
@@ -1,8 +1,11 @@
 {
-  "Logging": {
-    "LogLevel": {
+  "Serilog": {
+    "MinimumLevel": {
       "Default": "Information",
-      "Microsoft.Hosting.Lifetime": "Information"
+      "Override": {
+        "Microsoft": "Debug",
+        "Microsoft.Hosting.Lifetime": "Information"
+      }
     }
   }
 }
diff --git a/PARR.DAL/Context/DataContext.cs b/PARR.DAL/Context/DataContext.cs
index 398fa87d..6a8476c8 100644
--- a/PARR.DAL/Context/DataContext.cs
+++ b/PARR.DAL/Context/DataContext.cs
@@ -108,6 +108,17 @@ namespace PARR.DAL.Context
 
             var dateCreated = new DateTimeOffset(2023, 05, 01, 0, 0, 0, new TimeSpan(0));
 
+            #region Unit
+            //Добавляем ограничение по имени ЭК. нельзя писать прописными!!!
+            modelBuilder.Entity<Unit>(f =>
+            {
+                f.ToTable(t => t.HasCheckConstraint(
+                    "CK_Units_Name_Upper",
+                    "\"Name\" = UPPER(\"Name\") AND \"Name\" IS NOT NULL AND LENGTH(\"Name\")>0"
+                    ));
+            });
+            #endregion
+
             #region ApplicationType
             modelBuilder.Entity<ApplicationType>(f =>
             {
diff --git a/PARR.DAL/Migrations/20251031040748_AddUnitNameUppercaseCheck.cs b/PARR.DAL/Migrations/20251031040748_AddUnitNameUppercaseCheck.cs
new file mode 100644
index 00000000..6f8eca96
--- /dev/null
+++ b/PARR.DAL/Migrations/20251031040748_AddUnitNameUppercaseCheck.cs
@@ -0,0 +1,29 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace PARR.DAL.Migrations
+{
+    /// <inheritdoc />
+    public partial class AddUnitNameUppercaseCheck : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AddCheckConstraint(
+                name: "CK_Units_Name_Upper",
+                schema: "unit",
+                table: "Units",
+                sql: "\"Name\" = UPPER(\"Name\") AND \"Name\" IS NOT NULL AND LENGTH(\"Name\")>0");
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropCheckConstraint(
+                name: "CK_Units_Name_Upper",
+                schema: "unit",
+                table: "Units");
+        }
+    }
+}
diff --git a/PARR.DAL/Migrations/DataContextModelSnapshot.cs b/PARR.DAL/Migrations/DataContextModelSnapshot.cs
index c3ba1b8f..9a2f521b 100644
--- a/PARR.DAL/Migrations/DataContextModelSnapshot.cs
+++ b/PARR.DAL/Migrations/DataContextModelSnapshot.cs
@@ -2768,6 +2768,8 @@ namespace PARR.DAL.Migrations
                     b.ToTable("Units", "unit", t =>
                         {
                             t.HasComment("Таблица с ЭК");
+
+                            t.HasCheckConstraint("CK_Units_Name_Upper", "\"Name\" = UPPER(\"Name\") AND \"Name\" IS NOT NULL AND LENGTH(\"Name\")>0");
                         });
                 });