diff --git a/Services/ImportBackgroundService.cs b/Services/ImportBackgroundService.cs
index 4d4d4bc..6841bc5 100644
--- a/Services/ImportBackgroundService.cs
+++ b/Services/ImportBackgroundService.cs
@@ -602,7 +602,9 @@ public class ImportBackgroundService : BackgroundService
 
         // get doc from minio (MinIOService already saves Document to its own context)
         var doc = await _minioService.UploadFileAsync(new DummyFormFile(job.ImportFile));
+        var scoreImport_id = Guid.NewGuid(); // Pre-generate Id to use as FK
         var imported = new ScoreImport();
+        imported.Id = scoreImport_id;
         imported.Year = rec_import_year;
         imported.RecruitImportId = rec_import_id;
         imported.CreatedAt = DateTime.Now;
@@ -699,7 +701,6 @@ public class ImportBackgroundService : BackgroundService
                     r.LastUpdatedAt = DateTime.Now;
                     r.LastUpdateUserId = job.UserId ?? "";
                     r.LastUpdateFullName = job.FullName ?? "System Administrator";
-                    r.ScoreImport = imported;
 
                     batchScores.Add(r);
                 }
@@ -709,6 +710,11 @@ public class ImportBackgroundService : BackgroundService
 
                 if (batchCount >= batchSize)
                 {
+                    // Set ScoreImportId FK for all scores in batch
+                    foreach (var score in batchScores)
+                    {
+                        _context.Entry(score).Property("ScoreImportId").CurrentValue = scoreImport_id;
+                    }
                     await _context.BulkInsertAsync(batchScores);
                     batchScores.Clear();
                     batchCount = 0;
@@ -719,6 +725,10 @@ public class ImportBackgroundService : BackgroundService
             // Process remaining records
             if (batchScores.Count > 0)
             {
+                foreach (var score in batchScores)
+                {
+                    _context.Entry(score).Property("ScoreImportId").CurrentValue = scoreImport_id;
+                }
                 await _context.BulkInsertAsync(batchScores);
             }
         } while (reader.NextResult());