diff --git a/docker-app/qfieldcloud/core/tests/test_packages.py b/docker-app/qfieldcloud/core/tests/test_packages.py
index 8921b3699..6358df76d 100644
--- a/docker-app/qfieldcloud/core/tests/test_packages.py
+++ b/docker-app/qfieldcloud/core/tests/test_packages.py
@@ -191,7 +191,9 @@ def check_package(
 
     def test_list_files_for_qfield(self):
         cur = self.conn.cursor()
-        cur.execute("CREATE TABLE point (id integer, geometry geometry(point, 2056))")
+        cur.execute(
+            "CREATE TABLE point (id integer primary key, geometry geometry(point, 2056))"
+        )
         self.conn.commit()
         cur.execute(
             "INSERT INTO point(id, geometry) VALUES(1, ST_GeomFromText('POINT(2725505 1121435)', 2056))"
@@ -412,7 +414,9 @@ def test_needs_repackaging_without_online_vector(self):
 
     def test_needs_repackaging_with_online_vector(self):
         cur = self.conn.cursor()
-        cur.execute("CREATE TABLE point (id integer, geometry geometry(point, 2056))")
+        cur.execute(
+            "CREATE TABLE point (id integer primary key, geometry geometry(point, 2056))"
+        )
         self.conn.commit()
         cur.execute(
             "INSERT INTO point(id, geometry) VALUES(1, ST_GeomFromText('POINT(2725505 1121435)', 2056))"
@@ -443,7 +447,9 @@ def test_needs_repackaging_with_online_vector(self):
 
     def test_connects_via_pgservice(self):
         cur = self.conn.cursor()
-        cur.execute("CREATE TABLE point (id integer, geometry geometry(point, 2056))")
+        cur.execute(
+            "CREATE TABLE point (id integer primary key, geometry geometry(point, 2056))"
+        )
         self.conn.commit()
 
         Secret.objects.create(
@@ -503,7 +509,9 @@ def test_connects_via_pgservice(self):
 
     def test_has_online_vector_data(self):
         cur = self.conn.cursor()
-        cur.execute("CREATE TABLE point (id integer, geometry geometry(point, 2056))")
+        cur.execute(
+            "CREATE TABLE point (id integer primary key, geometry geometry(point, 2056))"
+        )
         self.conn.commit()
 
         self.upload_files(
@@ -629,7 +637,9 @@ def test_outdated_packaged_files_are_deleted(self):
         subscription.plan.save()
 
         cur = self.conn.cursor()
-        cur.execute("CREATE TABLE point (id integer, geometry geometry(point, 2056))")
+        cur.execute(
+            "CREATE TABLE point (id integer primary key, geometry geometry(point, 2056))"
+        )
         self.conn.commit()
         cur.execute(
             "INSERT INTO point(id, geometry) VALUES(1, ST_GeomFromText('POINT(2725505 1121435)', 2056))"
diff --git a/docker-app/qfieldcloud/core/tests/test_qfield_file.py b/docker-app/qfieldcloud/core/tests/test_qfield_file.py
index ffb48ea38..1c189619f 100644
--- a/docker-app/qfieldcloud/core/tests/test_qfield_file.py
+++ b/docker-app/qfieldcloud/core/tests/test_qfield_file.py
@@ -91,7 +91,7 @@ def test_list_files_for_qfield(self):
         cur.execute(
             """
             CREATE TABLE point (
-                id          integer,
+                id          integer primary key,
                 geometry   geometry(point, 2056)
             );
             """
diff --git a/docker-qgis/libqfieldsync b/docker-qgis/libqfieldsync
index 61b579cb0..a9c076197 160000
--- a/docker-qgis/libqfieldsync
+++ b/docker-qgis/libqfieldsync
@@ -1 +1 @@
-Subproject commit 61b579cb0e1a1adf08f0d040d1490883bfb5c7ba
+Subproject commit a9c0761972d92418de08e06baafaff3521ca4cc2
diff --git a/docker-qgis/utils.py b/docker-qgis/utils.py
index 137574071..d12684f5b 100644
--- a/docker-qgis/utils.py
+++ b/docker-qgis/utils.py
@@ -603,6 +603,11 @@ def get_layers_data(project: QgsProject) -> Dict[str, Dict]:
         error = layer.error()
         layer_id = layer.id()
         layer_source = LayerSource(layer)
+        datasource = None
+
+        if layer.dataProvider():
+            datasource = layer.dataProvider().uri().uri()
+
         layers_by_id[layer_id] = {
             "id": layer_id,
             "name": layer.name(),
@@ -616,10 +621,12 @@ def get_layers_data(project: QgsProject) -> Dict[str, Dict]:
                 "QFieldSync/is_geometry_locked"
             ),
             "qfs_photo_naming": layer.customProperty("QFieldSync/photo_naming"),
+            "qfc_source_data_pk_name": layer_source.pk_attr_name,
+            "qfs_unsupported_source_pk": layer.customProperty(
+                "QFieldSync/unsupported_source_pk"
+            ),
             "is_valid": layer.isValid(),
-            "datasource": layer.dataProvider().uri().uri()
-            if layer.dataProvider()
-            else None,
+            "datasource": datasource,
             "type": layer.type(),
             "type_name": layer.type().name,
             "error_code": "no_error",