diff --git a/lemarche/siaes/migrations/0080_remove_historicalsiae_is_cocontracting_and_more.py b/lemarche/siaes/migrations/0080_remove_historicalsiae_is_cocontracting_and_more.py
new file mode 100644
index 000000000..ae44d7d69
--- /dev/null
+++ b/lemarche/siaes/migrations/0080_remove_historicalsiae_is_cocontracting_and_more.py
@@ -0,0 +1,30 @@
+# Generated by Django 4.2.15 on 2025-01-03 10:18
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("siaes", "0079_alter_historicalsiae_contact_social_website_and_more"),
+    ]
+
+    operations = [
+        migrations.RemoveField(
+            model_name="historicalsiae",
+            name="is_cocontracting",
+        ),
+        migrations.RemoveField(
+            model_name="siae",
+            name="is_cocontracting",
+        ),
+        migrations.AddField(
+            model_name="historicalsiae",
+            name="_is_cocontracting",
+            field=models.BooleanField(default=False, verbose_name="Fonctionnalité désactivée"),
+        ),
+        migrations.AddField(
+            model_name="siae",
+            name="_is_cocontracting",
+            field=models.BooleanField(default=False, verbose_name="Fonctionnalité désactivée"),
+        ),
+    ]
diff --git a/lemarche/siaes/models.py b/lemarche/siaes/models.py
index 2d2a6d1f9..d0ded010f 100644
--- a/lemarche/siaes/models.py
+++ b/lemarche/siaes/models.py
@@ -697,7 +697,7 @@ class Siae(models.Model):
     logo_url = models.URLField(verbose_name="Lien vers le logo", max_length=500, blank=True)
 
     is_consortium = models.BooleanField(verbose_name="Consortium", default=False)
-    is_cocontracting = models.BooleanField(verbose_name="Co-traitance", default=False)
+    _is_cocontracting = models.BooleanField(verbose_name="Fonctionnalité désactivée", default=False)
 
     asp_id = models.IntegerField(verbose_name="ID ASP", blank=True, null=True)
     is_active = models.BooleanField(
diff --git a/lemarche/tenders/migrations/0095_remove_tender_accept_cocontracting_and_more.py b/lemarche/tenders/migrations/0095_remove_tender_accept_cocontracting_and_more.py
new file mode 100644
index 000000000..f7d84869c
--- /dev/null
+++ b/lemarche/tenders/migrations/0095_remove_tender_accept_cocontracting_and_more.py
@@ -0,0 +1,39 @@
+# Generated by Django 4.2.15 on 2025-01-03 10:18
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("tenders", "0094_add_templatetransactional_tender_author_commercial_partners"),
+    ]
+
+    operations = [
+        migrations.RemoveField(
+            model_name="tender",
+            name="accept_cocontracting",
+        ),
+        migrations.RemoveField(
+            model_name="tender",
+            name="siae_detail_cocontracting_click_count",
+        ),
+        migrations.RemoveField(
+            model_name="tendersiae",
+            name="detail_cocontracting_click_date",
+        ),
+        migrations.AddField(
+            model_name="tender",
+            name="_accept_cocontracting",
+            field=models.BooleanField(default=False, verbose_name="Archivé"),
+        ),
+        migrations.AddField(
+            model_name="tender",
+            name="_siae_detail_cocontracting_click_count",
+            field=models.IntegerField(default=0, verbose_name="Archivé"),
+        ),
+        migrations.AddField(
+            model_name="tendersiae",
+            name="_detail_cocontracting_click_date",
+            field=models.DateTimeField(blank=True, null=True, verbose_name="Archivé"),
+        ),
+    ]
diff --git a/lemarche/tenders/models.py b/lemarche/tenders/models.py
index 8a618cbce..53f4c1f44 100644
--- a/lemarche/tenders/models.py
+++ b/lemarche/tenders/models.py
@@ -414,9 +414,8 @@ class Tender(models.Model):
     )
 
     response_is_anonymous = models.BooleanField(verbose_name="Je souhaite rester anonyme", blank=False, default=False)
-    accept_cocontracting = models.BooleanField(
-        verbose_name="Ouvert à la co-traitance",
-        help_text="Ce besoin peut être répondu par plusieurs prestataires (co-traitance ou sous-traitance)",
+    _accept_cocontracting = models.BooleanField(
+        verbose_name="Archivé",
         default=False,
     )
 
@@ -653,9 +652,7 @@ class Tender(models.Model):
     siae_detail_contact_click_count = models.IntegerField(
         "Nombre de structures intéressées", help_text=RECALCULATED_FIELD_HELP_TEXT, default=0
     )
-    siae_detail_cocontracting_click_count = models.IntegerField(
-        "Nombre de structures ouvertes à la co-traitance", help_text=RECALCULATED_FIELD_HELP_TEXT, default=0
-    )
+    _siae_detail_cocontracting_click_count = models.IntegerField("Archivé", default=0)
     siae_detail_not_interested_click_count = models.IntegerField(
         "Nombre de structures pas intéressées", help_text=RECALCULATED_FIELD_HELP_TEXT, default=0
     )
@@ -1106,9 +1103,7 @@ class TenderSiae(models.Model):
     detail_contact_click_date = models.DateTimeField(
         verbose_name="Date de clic sur les coordonnées du besoin", blank=True, null=True
     )
-    detail_cocontracting_click_date = models.DateTimeField(
-        verbose_name="Date de clic sur Répondre en co-traitance", blank=True, null=True
-    )
+    _detail_cocontracting_click_date = models.DateTimeField(verbose_name="Archivé", blank=True, null=True)
     detail_not_interested_click_date = models.DateTimeField(
         verbose_name="Date de clic sur Pas intéressé", blank=True, null=True
     )