diff --git a/astrbot/dashboard/routes/platform.py b/astrbot/dashboard/routes/platform.py
index 2b3a9c7f8..e30265858 100644
--- a/astrbot/dashboard/routes/platform.py
+++ b/astrbot/dashboard/routes/platform.py
@@ -3,6 +3,9 @@
 提供统一的 webhook 回调入口，支持多个平台使用同一端口接收回调。
 """
 
+import secrets
+import string
+
 from quart import request
 
 from astrbot.core import logger
@@ -25,6 +28,10 @@ from astrbot.core.platform.sources.weixin_oc.login_registration import (
 from .route import Response, Route, RouteContext
 
 
+def _random_platform_id_suffix() -> str:
+    return "_" + "".join(secrets.choice(string.ascii_lowercase) for _ in range(4))
+
+
 class PlatformRoute(Route):
     """统一 Webhook 路由"""
 
@@ -233,6 +240,8 @@ class PlatformRoute(Route):
             if not device_code:
                 return Response().error("Missing device_code").__dict__, 400
             result = await poll_dingtalk_app_registration_once(device_code)
+            if result.get("status") == "created":
+                result["platform_id_suffix"] = _random_platform_id_suffix()
             return Response().ok(result).__dict__
 
         return Response().error(f"Unsupported action: {action}").__dict__, 400
@@ -269,6 +278,8 @@ class PlatformRoute(Route):
                 platform_config=platform_config,
                 qrcode=qrcode,
             )
+            if result.get("status") == "created":
+                result["platform_id_suffix"] = _random_platform_id_suffix()
             return Response().ok(result).__dict__
 
         return Response().error(f"Unsupported action: {action}").__dict__, 400
diff --git a/dashboard/src/components/platform/AddNewPlatform.vue b/dashboard/src/components/platform/AddNewPlatform.vue
index f079b1a68..b5466a25c 100644
--- a/dashboard/src/components/platform/AddNewPlatform.vue
+++ b/dashboard/src/components/platform/AddNewPlatform.vue
@@ -961,16 +961,48 @@ export default {
       this.$emit('show-toast', { message: message, type: 'error' });
     },
 
+    buildRandomPlatformIdSuffix() {
+      const letters = 'abcdefghijklmnopqrstuvwxyz';
+      let suffix = '_';
+      for (let i = 0; i < 4; i += 1) {
+        suffix += letters[Math.floor(Math.random() * letters.length)];
+      }
+      return suffix;
+    },
+
     handlePlatformRegistrationCreated(data) {
-      if (!this.selectedPlatformConfig || !data?.bot_name) {
+      if (!this.selectedPlatformConfig || !data) {
         return;
       }
       const currentId = String(this.selectedPlatformConfig.id || '').trim();
-      const safeBotName = String(data.bot_name || '').trim().replace(/[!:]/g, '_');
-      if (!currentId || !safeBotName) {
+      const platformType = this.selectedPlatformConfig.type;
+      if (!currentId) {
         return;
       }
-      const suffix = `-${safeBotName}`;
+
+      let suffix = '';
+      const explicitSuffix = String(data.platform_id_suffix || '').trim().replace(/[!:]/g, '_');
+      if (explicitSuffix) {
+        suffix = explicitSuffix.startsWith('_') || explicitSuffix.startsWith('-')
+          ? explicitSuffix
+          : `_${explicitSuffix}`;
+      } else if (data.bot_name) {
+        const safeBotName = String(data.bot_name || '').trim().replace(/[!:]/g, '_');
+        if (safeBotName) {
+          suffix = `-${safeBotName}`;
+        }
+      } else if (platformType === 'weixin_oc' || platformType === 'dingtalk') {
+        suffix = this.buildRandomPlatformIdSuffix();
+      }
+
+      if (!suffix) {
+        return;
+      }
+
+      if ((platformType === 'weixin_oc' || platformType === 'dingtalk') && /_[a-z]{4}$/.test(currentId)) {
+        return;
+      }
+
       this.selectedPlatformConfig.id = currentId.endsWith(suffix)
         ? currentId
         : `${currentId}${suffix}`;