diff --git a/apps/web/src/components/settings/settings-dialog.tsx b/apps/web/src/components/settings/settings-dialog.tsx
index 1be5c5d5..ecb5abec 100644
--- a/apps/web/src/components/settings/settings-dialog.tsx
+++ b/apps/web/src/components/settings/settings-dialog.tsx
@@ -295,7 +295,7 @@ function SystemSection() {
       });
       setSettings((prev) => ({ ...prev, customLogo: "true" }));
     } catch {
-      /* handle error */
+      setSaveMsg("Failed to upload logo.");
     }
   };
 
@@ -304,7 +304,7 @@ function SystemSection() {
       await apiDelete("/v1/settings/logo");
       setSettings((prev) => ({ ...prev, customLogo: "false" }));
     } catch {
-      /* handle error */
+      setSaveMsg("Failed to delete logo.");
     }
   };
 
diff --git a/apps/web/src/pages/automate-page.tsx b/apps/web/src/pages/automate-page.tsx
index 218367dc..c198ec57 100644
--- a/apps/web/src/pages/automate-page.tsx
+++ b/apps/web/src/pages/automate-page.tsx
@@ -66,9 +66,12 @@ export function AutomatePage() {
         });
         if (res.ok) {
           await loadPipelines();
+        } else {
+          const data = await res.json().catch(() => ({}));
+          setExecutionError(data.error || "Failed to save pipeline");
         }
       } catch {
-        // Error handling could be added
+        setExecutionError("Connection error while saving pipeline.");
       } finally {
         setSaving(false);
       }
diff --git a/tests/integration/api.test.ts b/tests/integration/api.test.ts
index f1942212..9b31b6b6 100644
--- a/tests/integration/api.test.ts
+++ b/tests/integration/api.test.ts
@@ -2668,6 +2668,31 @@ describe("Batch processing", () => {
       expect(res.headers["content-type"]).toBe("application/zip");
     });
   });
+
+  describe("Batch rejects custom-route tools", () => {
+    const customRouteTools = ["remove-background", "upscale", "ocr", "blur-faces", "erase-object"];
+
+    for (const toolId of customRouteTools) {
+      it(`returns 404 for batch "${toolId}" (custom-route tool)`, async () => {
+        const { body: payload, contentType } = createMultipartPayload([
+          { name: "file", filename: "a.png", contentType: "image/png", content: PNG_200x150 },
+          { name: "settings", content: JSON.stringify({}) },
+        ]);
+
+        const res = await app.inject({
+          method: "POST",
+          url: `/api/v1/tools/${toolId}/batch`,
+          headers: {
+            authorization: `Bearer ${adminToken}`,
+            "content-type": contentType,
+          },
+          payload,
+        });
+        expect(res.statusCode).toBe(404);
+        expect(JSON.parse(res.body).error).toContain("not found");
+      });
+    }
+  });
 });
 
 // ═══════════════════════════════════════════════════════════════════════════