diff --git a/openedx_course_enrollment_audit/management/commands/backfill_course_enrollment_audit.py b/openedx_course_enrollment_audit/management/commands/backfill_course_enrollment_audit.py
index 02ca061..af82be2 100644
--- a/openedx_course_enrollment_audit/management/commands/backfill_course_enrollment_audit.py
+++ b/openedx_course_enrollment_audit/management/commands/backfill_course_enrollment_audit.py
@@ -12,14 +12,11 @@ def handle(self, *args, **kwargs):
         total_count = ManualEnrollmentAudit.objects.count()
         self.stdout.write(self.style.NOTICE(f'Starting backfill of {total_count} records from ManualEnrollmentAudit.'))
 
-        for manual_enrollment in ManualEnrollmentAudit.objects.all().iterator():
-            course_enrollment_audit, created = CourseEnrollmentAudit.create_from_manual_enrollment(manual_enrollment)
-
-            if created:
-                self.stdout.write(self.style.SUCCESS(
-                    f'Created new CourseEnrollmentAudit for email: {manual_enrollment.enrolled_email}, course_id: {course_enrollment_audit.course_id}.'))
-            else:
-                self.stdout.write(self.style.WARNING(
-                    f'Updated existing CourseEnrollmentAudit for email: {manual_enrollment.enrolled_email}, course_id: {course_enrollment_audit.course_id}.'))
+        batch_size = 10000
+        for i, manual_enrollment in enumerate(ManualEnrollmentAudit.objects.all().iterator(), 1):
+            CourseEnrollmentAudit.create_from_manual_enrollment(manual_enrollment)
+
+            if i % batch_size == 0:
+                self.stdout.write(self.style.SUCCESS(f'Processed {i} records...'))
 
         self.stdout.write(self.style.SUCCESS('Backfill completed successfully.'))
diff --git a/openedx_course_enrollment_audit/models.py b/openedx_course_enrollment_audit/models.py
index 829e41c..6f4dd3d 100644
--- a/openedx_course_enrollment_audit/models.py
+++ b/openedx_course_enrollment_audit/models.py
@@ -71,7 +71,8 @@ def create_from_manual_enrollment(cls, manual_enrollment):
                 parsed_role = parsed_data.get('role')
                 parsed_reason = parsed_data.get('reason')
             except JSONDecodeError:
-                pass  # If JSON is invalid or missing keys, fields remain None
+                # If the reason field is not a valid JSON, store it as is.
+                parsed_reason = manual_enrollment.reason
 
         return cls.objects.update_or_create(
             enrolled_email=manual_enrollment.enrolled_email,