diff --git a/lemarche/tenders/admin.py b/lemarche/tenders/admin.py
index a50bfdf75..4a125aaf1 100644
--- a/lemarche/tenders/admin.py
+++ b/lemarche/tenders/admin.py
@@ -342,6 +342,7 @@ class TenderAdmin(FieldsetsInlineMixin, admin.ModelAdmin):
                     "survey_transactioned_feedback",
                     "survey_transactioned_answer_date",
                     "siae_transactioned",
+                    "siae_transactioned_last_updated",
                 )
             },
         ),
diff --git a/lemarche/tenders/migrations/0079_tender_siae_transactioned_last_updated.py b/lemarche/tenders/migrations/0079_tender_siae_transactioned_last_updated.py
new file mode 100644
index 000000000..c80c139e3
--- /dev/null
+++ b/lemarche/tenders/migrations/0079_tender_siae_transactioned_last_updated.py
@@ -0,0 +1,19 @@
+# Generated by Django 4.2.9 on 2024-03-06 08:39
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("tenders", "0078_tender_admins"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="tender",
+            name="siae_transactioned_last_updated",
+            field=models.DateTimeField(
+                blank=True, null=True, verbose_name="Abouti à une transaction : date de mise à jour"
+            ),
+        ),
+    ]
diff --git a/lemarche/tenders/models.py b/lemarche/tenders/models.py
index 89738054d..fe79af028 100644
--- a/lemarche/tenders/models.py
+++ b/lemarche/tenders/models.py
@@ -509,6 +509,9 @@ class Tender(models.Model):
         blank=True,
         null=True,
     )
+    siae_transactioned_last_updated = models.DateTimeField(
+        "Abouti à une transaction : date de mise à jour", blank=True, null=True
+    )
     amount_exact = models.PositiveIntegerField(
         verbose_name="Montant exact du besoin", help_text=ADMIN_FIELD_HELP_TEXT, blank=True, null=True
     )