diff --git a/backend/api/migrations/0059_remove_datamanager_type.py b/backend/api/migrations/0059_remove_datamanager_type.py
new file mode 100644
index 000000000..54f32edec
--- /dev/null
+++ b/backend/api/migrations/0059_remove_datamanager_type.py
@@ -0,0 +1,16 @@
+# Generated by Django 4.2.9 on 2024-03-22 09:39
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("api", "0058_alter_compute_task_status"),
+    ]
+
+    operations = [
+        migrations.RemoveField(
+            model_name="datamanager",
+            name="type",
+        ),
+    ]
diff --git a/backend/api/models/datamanager.py b/backend/api/models/datamanager.py
index e2b38ce55..6b1001a55 100644
--- a/backend/api/models/datamanager.py
+++ b/backend/api/models/datamanager.py
@@ -20,7 +20,6 @@ class DataManager(models.Model, AssetPermissionMixin):
     permissions_process_authorized_ids = ArrayField(models.CharField(max_length=1024), size=100)
     logs_permission_public = models.BooleanField()
     logs_permission_authorized_ids = ArrayField(models.CharField(max_length=1024), size=100)
-    type = models.CharField(max_length=100)
     owner = models.CharField(max_length=100)
     creation_date = models.DateTimeField()
     metadata = models.JSONField()
diff --git a/backend/api/serializers/datamanager.py b/backend/api/serializers/datamanager.py
index bef0b095f..e3dec9bad 100644
--- a/backend/api/serializers/datamanager.py
+++ b/backend/api/serializers/datamanager.py
@@ -29,7 +29,6 @@ class Meta:
             "opener",
             "owner",
             "permissions",
-            "type",
         ]
 
     def to_representation(self, instance):
diff --git a/backend/api/tests/asset_factory.py b/backend/api/tests/asset_factory.py
index bda79bae1..2a7ad1cc1 100644
--- a/backend/api/tests/asset_factory.py
+++ b/backend/api/tests/asset_factory.py
@@ -262,7 +262,6 @@ def create_function(
 def create_datamanager(
     key: uuid.UUID = None,
     name: str = "datamanager",
-    type: str = "Test",
     metadata: dict = None,
     owner: str = DEFAULT_OWNER,
     channel: str = DEFAULT_CHANNEL,
@@ -273,7 +272,6 @@ def create_datamanager(
     return DataManager.objects.create(
         key=key,
         name=name,
-        type=type,
         metadata=metadata or {},
         opener_address=get_storage_address("data_manager", key, "opener"),
         opener_checksum=DUMMY_CHECKSUM,
diff --git a/backend/api/tests/views/test_views_datamanager.py b/backend/api/tests/views/test_views_datamanager.py
index e36fff8ab..48aa48039 100644
--- a/backend/api/tests/views/test_views_datamanager.py
+++ b/backend/api/tests/views/test_views_datamanager.py
@@ -75,7 +75,6 @@ def setUp(self):
                         "authorized_ids": ["MyOrg1MSP"],
                     },
                 },
-                "type": "Test",
                 "opener": {
                     "checksum": "dummy-checksum",
                     "storage_address": f"http://testserver/data_manager/{data_manager_1.key}/opener/",
@@ -106,7 +105,6 @@ def setUp(self):
                         "authorized_ids": ["MyOrg1MSP"],
                     },
                 },
-                "type": "Test",
                 "opener": {
                     "checksum": "dummy-checksum",
                     "storage_address": f"http://testserver/data_manager/{data_manager_2.key}/opener/",
@@ -137,7 +135,6 @@ def setUp(self):
                         "authorized_ids": ["MyOrg1MSP"],
                     },
                 },
-                "type": "Test",
                 "opener": {
                     "checksum": "dummy-checksum",
                     "storage_address": f"http://testserver/data_manager/{data_manager_3.key}/opener/",
@@ -377,7 +374,6 @@ def mock_orc_response(data):
             "json": json.dumps(
                 {
                     "name": "Datamanager test",
-                    "type": "Test",
                     "permissions": {
                         "public": True,
                         "authorized_ids": ["MyOrg1MSP"],
@@ -410,7 +406,6 @@ def test_file_size_limit(self):
             "json": json.dumps(
                 {
                     "name": "Datamanager test",
-                    "type": "Test",
                     "permissions": {
                         "public": True,
                         "authorized_ids": ["MyOrg1MSP"],
@@ -447,7 +442,6 @@ def __init__(self) -> None:
             "json": json.dumps(
                 {
                     "name": "Datamanager test",
-                    "type": "Test",
                     "permissions": {
                         "public": True,
                         "authorized_ids": ["MyOrg1MSP"],
diff --git a/changes/.gitkeep b/changes/.gitkeep
new file mode 100644
index 000000000..e69de29bb
diff --git a/changes/860.changed b/changes/860.changed
new file mode 100644
index 000000000..6fee439a6
--- /dev/null
+++ b/changes/860.changed
@@ -0,0 +1 @@
+BREAKING: remove `type` from `datamanager` ([#860](https://github.com/Substra/substra-backend/pull/860/files))
\ No newline at end of file