diff --git a/courses/admin.py b/courses/admin.py
index 920747be20..954245300c 100644
--- a/courses/admin.py
+++ b/courses/admin.py
@@ -200,6 +200,7 @@ class CourseRunEnrollmentAuditInline(admin.TabularInline):
         "enrollment_id",
         "created_on",
         "acting_user",
+        "call_stack",
         "data_before",
         "data_after",
     ]
diff --git a/courses/migrations/0045_audit_modified_by.py b/courses/migrations/0045_audit_modified_by.py
new file mode 100644
index 0000000000..8354a9228b
--- /dev/null
+++ b/courses/migrations/0045_audit_modified_by.py
@@ -0,0 +1,28 @@
+# Generated by Django 3.2.23 on 2024-02-29 18:52
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("courses", "0044_alter_courserun_live"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="courserunenrollmentaudit",
+            name="modified_by",
+            field=models.CharField(blank=True, default="", max_length=750, null=True),
+        ),
+        migrations.AddField(
+            model_name="courserungradeaudit",
+            name="modified_by",
+            field=models.CharField(blank=True, default="", max_length=750, null=True),
+        ),
+        migrations.AddField(
+            model_name="programenrollmentaudit",
+            name="modified_by",
+            field=models.CharField(blank=True, default="", max_length=750, null=True),
+        ),
+    ]
diff --git a/courses/migrations/0046_audit_rename_call_stack.py b/courses/migrations/0046_audit_rename_call_stack.py
new file mode 100644
index 0000000000..3d50dec2e7
--- /dev/null
+++ b/courses/migrations/0046_audit_rename_call_stack.py
@@ -0,0 +1,28 @@
+# Generated by Django 3.2.23 on 2024-03-06 13:41
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("courses", "0045_audit_modified_by"),
+    ]
+
+    operations = [
+        migrations.RenameField(
+            model_name="courserunenrollmentaudit",
+            old_name="modified_by",
+            new_name="call_stack",
+        ),
+        migrations.RenameField(
+            model_name="courserungradeaudit",
+            old_name="modified_by",
+            new_name="call_stack",
+        ),
+        migrations.RenameField(
+            model_name="programenrollmentaudit",
+            old_name="modified_by",
+            new_name="call_stack",
+        ),
+    ]
diff --git a/ecommerce/management/commands/refund_fulfilled_order.py b/ecommerce/management/commands/refund_fulfilled_order.py
index e5b4e01865..4cf0dfe098 100644
--- a/ecommerce/management/commands/refund_fulfilled_order.py
+++ b/ecommerce/management/commands/refund_fulfilled_order.py
@@ -1,6 +1,6 @@
 """
 Looks up a fulfilled order in the system, sets it to Refunded, and then adjusts
-the enrollments accordingly. 
+the enrollments accordingly.
 
 - If --unenroll is specified, the learner will be unenrolled from the course run
   associated with the order.
@@ -9,8 +9,8 @@
 
 This does not make any sort of call to CyberSource or any other payment gateway
 to perform a refund - you're expected to have refunded the learner's money
-manually already. (At time of writing, PayPal transactions can't be refunded 
-using the normal means, so they get refunded manually via CyberSource and then 
+manually already. (At time of writing, PayPal transactions can't be refunded
+using the normal means, so they get refunded manually via CyberSource and then
 this command comes in to clean up afterwards.)
 
 """
@@ -83,8 +83,7 @@ def handle(self, *args, **kwargs):
                     f"Changing enrollment for {order.purchaser.username} in {enrollment.run} to 'audit'"
                 )
 
-                enrollment.enrollment_mode = "audit"
-                enrollment.save()
+                enrollment.update_mode_and_save("audit")
 
                 enroll_in_edx_course_runs(
                     order.purchaser, [enrollment.run], mode="audit"
diff --git a/main/models.py b/main/models.py
index 7c99004c8f..b906ca02ee 100644
--- a/main/models.py
+++ b/main/models.py
@@ -1,10 +1,13 @@
 """
 Common model classes
 """
+import traceback
+
 from django.conf import settings
 from django.db import transaction
 from django.db.models import (
     CASCADE,
+    CharField,
     DateTimeField,
     ForeignKey,
     JSONField,
@@ -18,6 +21,7 @@ class AuditModel(TimestampedModel):
     """An abstract base class for audit models"""
 
     acting_user = ForeignKey(settings.AUTH_USER_MODEL, null=True, on_delete=CASCADE)
+    call_stack = CharField(default="", max_length=750, null=True, blank=True)
     data_before = JSONField(blank=True, null=True)
     data_after = JSONField(blank=True, null=True)
 
@@ -84,8 +88,13 @@ def save_and_log(self, acting_user, *args, **kwargs):
         if before_obj is not None:
             before_dict = before_obj.to_dict()
 
+        call_stack = "".join(traceback.format_stack()[-6:-2])
+
         audit_kwargs = dict(
-            acting_user=acting_user, data_before=before_dict, data_after=self.to_dict()
+            acting_user=acting_user,
+            call_stack=call_stack,
+            data_before=before_dict,
+            data_after=self.to_dict(),
         )
         audit_class = self.get_audit_class()
         audit_kwargs[audit_class.get_related_field_name()] = self
diff --git a/main/utils_test.py b/main/utils_test.py
index c527594edc..16f29776f3 100644
--- a/main/utils_test.py
+++ b/main/utils_test.py
@@ -25,6 +25,7 @@ def test_get_field_names():
         "acting_user",
         "created_on",
         "updated_on",
+        "call_stack",
     }