diff --git a/netbox_interface_sync/comparison.py b/netbox_interface_sync/comparison.py
index 41d420c..ec0ce61 100644
--- a/netbox_interface_sync/comparison.py
+++ b/netbox_interface_sync/comparison.py
@@ -146,6 +146,10 @@ class PowerPortComparison(ParentTypedComparison):
             and (self.allocated_draw == other.allocated_draw)
         )
 
+    def __hash__(self):
+        # Ignore some fields when hashing; ignore interface name case and whitespaces
+        return hash((self.name.lower().replace(" ", ""), self.type))
+
 
 @dataclass(frozen=True)
 class PowerOutletComparison(ParentTypedComparison):
diff --git a/netbox_interface_sync/views.py b/netbox_interface_sync/views.py
index 59ff5aa..6c0b03a 100644
--- a/netbox_interface_sync/views.py
+++ b/netbox_interface_sync/views.py
@@ -317,7 +317,7 @@ class PowerOutletComparisonView(LoginRequiredMixin, PermissionRequiredMixin, Vie
                     except ValueError:
                         pass
             else:
-                message.append("Dependecy detected, sync power ports first!")
+                messages.error(request, "Dependecy detected, sync power ports first!")
 
             if created > 0:
                 message.append(f"created {created} power outlet")
@@ -450,7 +450,7 @@ class FrontPortComparisonView(LoginRequiredMixin, PermissionRequiredMixin, View)
                     except ValueError:
                         pass
             else:
-                message.append("Dependecy detected, sync rear ports first!")
+                messages.error(request, "Dependecy detected, sync power ports first!")
 
             if created > 0:
                 message.append(f"created {created} front ports")