diff --git a/cads_processing_api_service/auth.py b/cads_processing_api_service/auth.py
index a313fa6..a15bf0b 100644
--- a/cads_processing_api_service/auth.py
+++ b/cads_processing_api_service/auth.py
@@ -111,7 +111,7 @@ def authenticate_user(
         request_url,
         headers={
             auth_header[0]: auth_header[1],
-            config.PORTAL_HEADER_NAME: portal_header,  # type: ignore
+            config.PORTAL_HEADER_NAME: portal_header,
         },
     )
     if response.status_code in (
diff --git a/cads_processing_api_service/clients.py b/cads_processing_api_service/clients.py
index 861dcd6..dfdb58b 100644
--- a/cads_processing_api_service/clients.py
+++ b/cads_processing_api_service/clients.py
@@ -288,7 +288,9 @@ def get_jobs(
             List of jobs status information.
         """
         user_uid, _ = auth.authenticate_user(auth_header, portal_header)
-        portals = [p.strip() for p in portal_header.split(",")]
+        portals = (
+            [p.strip() for p in portal_header.split(",")] if portal_header else None
+        )
         job_filters = {
             "process_id": processID,
             "status": status,
@@ -405,7 +407,9 @@ def get_job(
             Job status information.
         """
         user_uid, _ = auth.authenticate_user(auth_header, portal_header)
-        portals = [p.strip() for p in portal_header.split(",")]
+        portals = (
+            [p.strip() for p in portal_header.split(",")] if portal_header else None
+        )
         try:
             compute_sessionmaker = db_utils.get_compute_sessionmaker(
                 mode=db_utils.ConnectionMode.read