diff --git a/api/src/db/session.py b/api/src/db/session.py
index eb04b72..83da0bc 100644
--- a/api/src/db/session.py
+++ b/api/src/db/session.py
@@ -15,6 +15,9 @@ async def get_db() -> AsyncGenerator:
     try:
         yield db
         await db.commit()
+    except Exception:
+        await db.rollback()
+        raise
     finally:
         await db.close()
 
diff --git a/api/src/repository/user_repository.py b/api/src/repository/user_repository.py
index 73b07f4..07ddd94 100644
--- a/api/src/repository/user_repository.py
+++ b/api/src/repository/user_repository.py
@@ -105,50 +105,35 @@ class UserRepository:
         query = select(UserOrg.org_unit_id).where(UserOrg.user_id == user_id)
         return (await self.db.execute(query)).scalars().all()
 
-    async def set_many_ssp(self, user_id: int, ssp_ids: list[int]) -> bool:
-        try:
-            for ssp_id in ssp_ids:
-                await self.db.execute(
-                    text(
-                        "SELECT v3.grant_user_org_access(:user_id, :org_unit_id)"
-                    ),
-                    {"user_id": user_id, "org_unit_id": ssp_id},
-                )
-            await self.db.commit()
-            return True
-        except Exception:
-            await self.db.rollback()
-            return False
-
-    async def unset_many_ssp(self, user_id: int, ssp_ids: list[int]) -> bool:
-        try:
-            for ssp_id in ssp_ids:
-                await self.db.execute(
-                    text(
-                        "SELECT v3.revoke_user_org_access(:user_id, :org_unit_id)"
-                    ),
-                    {"user_id": user_id, "org_unit_id": ssp_id},
-                )
-            await self.db.commit()
-            return True
-        except Exception:
-            await self.db.rollback()
-            return False
-
-    async def clear_many_ssp(self, user_id: int) -> bool:
-        try:
-            org_unit_ids = await self.get_many_ssp_ids(user_id)
+    async def set_many_ssp(self, user_id: int, ssp_ids: list[int]) -> None:
+        for ssp_id in ssp_ids:
             await self.db.execute(
                 text(
-                    "SELECT v3.revoke_many_user_org_access(:user_id, :org_unit_ids)"
+                    "SELECT v3.grant_user_org_access(:user_id, :org_unit_id)"
                 ),
-                {"user_id": user_id, "org_unit_ids": org_unit_ids},
+                {"user_id": user_id, "org_unit_id": ssp_id},
             )
-            await self.db.commit()
-            return True
-        except Exception:
-            await self.db.rollback()
-            return False
+        await self.db.commit()
+
+    async def unset_many_ssp(self, user_id: int, ssp_ids: list[int]) -> None:
+        for ssp_id in ssp_ids:
+            await self.db.execute(
+                text(
+                    "SELECT v3.revoke_user_org_access(:user_id, :org_unit_id)"
+                ),
+                {"user_id": user_id, "org_unit_id": ssp_id},
+            )
+        await self.db.commit()
+
+    async def clear_many_ssp(self, user_id: int) -> None:
+        org_unit_ids = await self.get_many_ssp_ids(user_id)
+        await self.db.execute(
+            text(
+                "SELECT v3.revoke_many_user_org_access(:user_id, :org_unit_ids)"
+            ),
+            {"user_id": user_id, "org_unit_ids": org_unit_ids},
+        )
+        await self.db.commit()
 
     async def create(self, user_data: dict) -> AppUser:
         hashed_password = (