diff --git a/app/routers/e_confex.py b/app/routers/e_confex.py
index 8a22396..220dc2c 100644
--- a/app/routers/e_confex.py
+++ b/app/routers/e_confex.py
@@ -31,8 +31,8 @@ router = APIRouter()
 # Updated 2024-04-25
 @router.get('/event/{e_confex_event_id}/import_reg', response_model=Resp_Body_Base)
 async def import_event_session_list(
-        e_confex_event_id: str = Path(min_length=3, max_length=22), # For AAPOR: aapor_2023 (2024-05); aapor_2023 (2023-05)
-        e_confex_session_id: str = Query(None, min_length=5, max_length=22),
+        e_confex_event_id: str = Path(min_length=5, max_length=22), # For AAPOR: aapor_2023 (2024-05); aapor_2023 (2023-05)
+        e_confex_session_id: str = Query(None, min_length=3, max_length=22),
 
         event_id: str = Query(min_length=11, max_length=22), # For AAPOR: MCz-Qm-48-j1 (1513 2024-05) 9jW-Db-SF-wt (1478 2023-05); x2H2P2MYlXU (1447 2022-05)
         # Account ID For AAPOR: j5EBhRDqPuw (20)