diff --git a/backend/Tnsu.ApprovalRoute.Application/Reminders/ReminderDto.cs b/backend/Tnsu.ApprovalRoute.Application/Reminders/ReminderDto.cs
index 739d177..73f808a 100644
--- a/backend/Tnsu.ApprovalRoute.Application/Reminders/ReminderDto.cs
+++ b/backend/Tnsu.ApprovalRoute.Application/Reminders/ReminderDto.cs
@@ -11,6 +11,10 @@ namespace Tnsu.ApprovalRoute.Application.Reminders;
 /// наследованием (шаг перекрывает тип заявки).
 /// </param>
 /// <param name="Status">Статус просроченного шага (ApprovalStatus строки списка «… — согласование»).</param>
+/// <param name="RequestUniqueCode">
+/// Уникальный код заявки (колонка RequestUniqueCode списка данных) — null, если у
+/// заявки его нет или строка данных не найдена.
+/// </param>
 public sealed record ReminderDto(
     string Email,
     int HoursOverdue,
@@ -19,4 +23,5 @@ public sealed record ReminderDto(
     int RequestTypeId,
     string RequestTypeName,
     int RequestId,
-    string Status);
+    string Status,
+    string? RequestUniqueCode);
diff --git a/backend/Tnsu.ApprovalRoute.Application/Reminders/ReminderService.cs b/backend/Tnsu.ApprovalRoute.Application/Reminders/ReminderService.cs
index bc2d28d..9fea9c6 100644
--- a/backend/Tnsu.ApprovalRoute.Application/Reminders/ReminderService.cs
+++ b/backend/Tnsu.ApprovalRoute.Application/Reminders/ReminderService.cs
@@ -96,6 +96,9 @@ public sealed class ReminderService(
         var active = await ReadRowsAsync(siteUrl, approvalListTitle, ActiveStatusFilter, cancellationToken);
         if (active.Count == 0) return [];
 
+        var uniqueCodes = await ReadUniqueCodesAsync(
+            siteUrl, type.ListId!, active.Select(r => r.TicketId).Distinct(), cancellationToken);
+
         var reminders = new List<ReminderDto>();
         foreach (var row in active)
         {
@@ -127,7 +130,8 @@ public sealed class ReminderService(
                 type.Id,
                 type.Name,
                 row.TicketId,
-                row.Status));
+                row.Status,
+                uniqueCodes.GetValueOrDefault(row.TicketId)));
         }
 
         return reminders;
@@ -172,4 +176,30 @@ public sealed class ReminderService(
 
     private static List<ApprovalRow> Parse(IEnumerable<JsonElement> items) =>
         items.Select(ApprovalRow.TryParse).Where(r => r is not null).Select(r => r!).ToList();
+
+    /// <summary>
+    /// RequestUniqueCode заявок из списка данных — только по заявкам, у которых
+    /// сейчас есть просроченный шаг (а не по всему списку: он может быть большим).
+    /// </summary>
+    private async Task<IReadOnlyDictionary<int, string?>> ReadUniqueCodesAsync(
+        string siteUrl, string dataListUrl, IEnumerable<int> ticketIds, CancellationToken cancellationToken)
+    {
+        var filter = string.Join(" or ", ticketIds.Select(id => $"Id eq {id}"));
+        if (filter.Length == 0) return new Dictionary<int, string?>();
+
+        var items = await sharePoint.GetItemsByListUrlAsync(
+            siteUrl, dataListUrl, $"$select=Id,RequestUniqueCode&$filter={filter}", cancellationToken);
+
+        var result = new Dictionary<int, string?>();
+        foreach (var item in items)
+        {
+            if (!item.TryGetProperty("Id", out var idProp) || !idProp.TryGetInt32(out var id)) continue;
+
+            result[id] = item.TryGetProperty("RequestUniqueCode", out var code) && code.ValueKind == JsonValueKind.String
+                ? code.GetString()
+                : null;
+        }
+
+        return result;
+    }
 }
diff --git a/backend/tests/Tnsu.ApprovalRoute.IntegrationTests/ApplicationServices/ReminderServiceTests.cs b/backend/tests/Tnsu.ApprovalRoute.IntegrationTests/ApplicationServices/ReminderServiceTests.cs
index 9d60089..57d4861 100644
--- a/backend/tests/Tnsu.ApprovalRoute.IntegrationTests/ApplicationServices/ReminderServiceTests.cs
+++ b/backend/tests/Tnsu.ApprovalRoute.IntegrationTests/ApplicationServices/ReminderServiceTests.cs
@@ -92,6 +92,13 @@ public sealed class ReminderServiceTests : IClassFixture<PostgresDatabaseFixture
                 SiteUrl, ApprovalListTitle, It.Is<string>(q => q.Contains("ApprovalStatus eq")), It.IsAny<CancellationToken>()))
             .ReturnsAsync(activeRows.Select(Json).ToList());
 
+        // RequestUniqueCode запрашивается по списку данных сразу для всех активных
+        // заявок — по умолчанию тесты его не проверяют, поэтому мок отдаёт пусто.
+        sharePoint
+            .Setup(x => x.GetItemsByListUrlAsync(
+                SiteUrl, listUrl, It.Is<string>(q => q.Contains("RequestUniqueCode")), It.IsAny<CancellationToken>()))
+            .ReturnsAsync([]);
+
         return new ReminderService(
             _services.GetRequiredService<ApprovalRouteDbContext>(),
             sharePoint.Object,