diff --git a/open_energy_view/errors.py b/open_energy_view/errors.py
new file mode 100644
index 0000000..4ad824c
--- /dev/null
+++ b/open_energy_view/errors.py
@@ -0,0 +1,5 @@
+"""Define errors."""
+
+
+class OEVErrorIntervalBlockURLNotFound(Exception):
+    pass
diff --git a/open_energy_view/resources.py b/open_energy_view/resources.py
index 094fa22..15634e7 100644
--- a/open_energy_view/resources.py
+++ b/open_energy_view/resources.py
@@ -26,6 +26,7 @@
 from celery import chain
 from celery.result import AsyncResult
 
+from . import errors
 from . import models
 from . import bcrypt
 from . import db
@@ -367,6 +368,7 @@ def get(self):
         user_info = json.loads(user_info)
 
         task_ids = []
+        failed_usage_points = []
 
         for usage_point, entry in names.items():
             if entry["kind"] != "electricity":
@@ -384,10 +386,17 @@ def get(self):
                     usage_point=usage_point,
                     published_period_start=user_info.get("published_period_start"),
                 )
+
+                try:
+                    task_ids.append(
+                        pge_api.get_historical_data_incrementally(new_source).id
+                    )
+                except errors.OEVErrorIntervalBlockURLNotFound:
+                    failed_usage_points.append(usage_point)
+                    continue
+
                 new_source.save_to_db()
-                task_ids.append(
-                    pge_api.get_historical_data_incrementally(new_source).id
-                )
+
             except exc.IntegrityError:
                 db.session.rollback()
                 source = (
@@ -408,6 +417,8 @@ def get(self):
                 task_ids.append(pge_api.get_historical_data_incrementally(source).id)
 
         if len(task_ids) == 0:
+            if len(failed_usage_points > 0):
+                return {"error": f"Could not retrieve usage points: {failed_usage_points}"}, 500
             return {"message": "No electrical service submitted."}, 200
         return (
             task_ids[0],
diff --git a/open_energy_view/utility_apis.py b/open_energy_view/utility_apis.py
index c740a0e..3305cb1 100644
--- a/open_energy_view/utility_apis.py
+++ b/open_energy_view/utility_apis.py
@@ -9,6 +9,7 @@
 from gevent import sleep
 
 
+from . import errors
 from . import models
 from . import db
 from .espi_helpers import save_espi_xml
@@ -459,7 +460,7 @@ def get_historical_data_incrementally(self, source):
         else:
             print("Could not find interval block url")
             save_espi_xml(response_text, filename=f"SubRespForSource{source.id}")
-            return {"error": "could not find interval block url"}, 500
+            raise errors.OEVErrorIntervalBlockURLNotFound
 
         published_period_start = source.published_period_start