diff --git a/ui/src/ui/app-channels.ts b/ui/src/ui/app-channels.ts
index eb05e83e81b..6101ade8817 100644
--- a/ui/src/ui/app-channels.ts
+++ b/ui/src/ui/app-channels.ts
@@ -25,12 +25,18 @@ export async function handleWhatsAppLogout(host: OpenClawApp) {
 }
 
 export async function handleChannelConfigSave(host: OpenClawApp) {
+  host.channelsError = null;
   await saveConfig(host);
+  const saveError = host.lastError;
   await loadConfig(host);
   await loadChannels(host, true);
+  if (saveError) {
+    host.channelsError = saveError;
+  }
 }
 
 export async function handleChannelConfigReload(host: OpenClawApp) {
+  host.channelsError = null;
   await loadConfig(host);
   await loadChannels(host, true);
 }
diff --git a/ui/src/ui/views/channels.config.ts b/ui/src/ui/views/channels.config.ts
index 3037568992c..421534bc976 100644
--- a/ui/src/ui/views/channels.config.ts
+++ b/ui/src/ui/views/channels.config.ts
@@ -1,4 +1,4 @@
-import { html } from "lit";
+import { html, nothing } from "lit";
 import type { ConfigUiHints } from "../types.ts";
 import { formatChannelExtraValue, resolveChannelConfigValue } from "./channel-config-extras.ts";
 import type { ChannelsProps } from "./channels.types.ts";
@@ -118,6 +118,7 @@ export function renderChannelConfigForm(props: ChannelConfigFormProps) {
 export function renderChannelConfigSection(params: { channelId: string; props: ChannelsProps }) {
   const { channelId, props } = params;
   const disabled = props.configSaving || props.configSchemaLoading;
+  const hasError = Boolean(props.lastError);
   return html`
     <div style="margin-top: 16px;">
       ${
@@ -134,6 +135,15 @@ export function renderChannelConfigSection(params: { channelId: string; props: C
               onPatch: props.onConfigPatch,
             })
       }
+      ${
+        hasError
+          ? html`
+              <div class="callout danger" style="margin-top: 12px;">
+                ${props.lastError}
+              </div>
+            `
+          : nothing
+      }
       <div class="row" style="margin-top: 12px;">
         <button
           class="btn primary"