diff --git a/packages/base/src/page/Transit/index.test.tsx b/packages/base/src/page/Transit/index.test.tsx
index e405dc92eb..c74b400dbe 100644
--- a/packages/base/src/page/Transit/index.test.tsx
+++ b/packages/base/src/page/Transit/index.test.tsx
@@ -38,6 +38,21 @@ describe('Transit Component', () => {
     console.error = originOutputError;
   });
 
+  it('should wait until user info is fetched before resolving project', () => {
+    mockUseCurrentUser({
+      isUserInfoFetched: false,
+      bindProjects: []
+    });
+    mockExtractQueries.mockReturnValue({
+      from: 'cloudbeaver',
+      to: 'create_workflow',
+      project_name: 'default',
+      compression_data: 'data'
+    });
+    superRender(<Transit />);
+    expect(mockNavigate).not.toHaveBeenCalled();
+  });
+
   it('should navigate to / when required parameters are missing', () => {
     mockExtractQueries.mockReturnValue({
       from: 'cloudbeaver'
diff --git a/packages/base/src/page/Transit/index.tsx b/packages/base/src/page/Transit/index.tsx
index 2b9e70bcb8..4b280d0b35 100644
--- a/packages/base/src/page/Transit/index.tsx
+++ b/packages/base/src/page/Transit/index.tsx
@@ -42,7 +42,7 @@ const TARGET_DATA = (
 
 const Transit: React.FC = () => {
   const navigate = useTypedNavigate();
-  const { bindProjects } = useCurrentUser();
+  const { bindProjects, isUserInfoFetched } = useCurrentUser();
   const extractQueries = useTypedQuery();
   useEffect(() => {
     const searchParams = extractQueries(ROUTE_PATHS.BASE.TRANSIT.index);
@@ -51,6 +51,9 @@ const Transit: React.FC = () => {
     const compressionData = searchParams?.compression_data;
     const projectName = searchParams?.project_name;
     const workflowId = searchParams?.workflow_id;
+    if (!isUserInfoFetched) {
+      return;
+    }
     if (!from || !to) {
       console.error(`Missing required parameters!\n from=${from}\n to=${to}\n`);
       navigate(ROUTE_PATHS.BASE.HOME, {
@@ -85,9 +88,15 @@ const Transit: React.FC = () => {
         return;
       }
       if (compressionData) {
-        navigate(`${path}?from=${from}&compression_data=${compressionData}`, {
-          replace: true
-        });
+        // useTypedQuery / URLSearchParams 已解码；再拼 URL 必须重新编码，否则 + 变空格破坏预填
+        navigate(
+          `${path}?from=${encodeURIComponent(
+            from
+          )}&compression_data=${encodeURIComponent(compressionData)}`,
+          {
+            replace: true
+          }
+        );
       } else {
         navigate(path, {
           replace: true
@@ -99,7 +108,7 @@ const Transit: React.FC = () => {
         replace: true
       });
     }
-  }, [bindProjects, navigate, extractQueries]);
+  }, [bindProjects, isUserInfoFetched, navigate, extractQueries]);
   return <HeaderProgress />;
 };
 export default Transit;
diff --git a/packages/dms-kit/src/utils/Common.ts b/packages/dms-kit/src/utils/Common.ts
index f5e737b7c2..51592817ae 100644
--- a/packages/dms-kit/src/utils/Common.ts
+++ b/packages/dms-kit/src/utils/Common.ts
@@ -84,26 +84,64 @@ export type GetErrorMessageParams =
   | string
   | AxiosResponse
   | ISwaggerLoseRequireParamsRes;
+
+const BUSINESS_ERROR_I18N_KEYS: Record<string, string> = {
+  'privilege_apply.no_assignee': 'privilegeApply.create.errors.noAssignee',
+  'privilege_apply.account_mismatch':
+    'privilegeApply.create.errors.accountMismatch',
+  'privilege_apply.invalid_argument':
+    'privilegeApply.create.errors.invalidArgument',
+  'privilege_apply.duplicate_open':
+    'privilegeApply.create.errors.duplicateOpen',
+  'privilege_apply.invalid_account_name':
+    'privilegeApply.create.errors.invalidAccountName',
+  'privilege_apply.forbidden': 'privilegeApply.detail.errors.forbidden'
+};
+
+const BUSINESS_ERROR_FALLBACK_ZH: Record<string, string> = {
+  'privilege_apply.no_assignee': '请先配置提权审批人后再提交（未落单）',
+  'privilege_apply.account_mismatch':
+    '当前连库账号已变更，请回到工作台刷新后重新申请',
+  'privilege_apply.invalid_argument': '请完善必填项后重试',
+  'privilege_apply.duplicate_open':
+    '该数据源已有进行中的提权申请，请等待处理完成后再提交',
+  'privilege_apply.invalid_account_name':
+    '新账号名不合法：仅支持字母开头，字母、数字、下划线、连字符与点，最长 32 字符',
+  'privilege_apply.forbidden': '没有账号管理权限，无法审批该提权申请'
+};
+
+const mapBusinessErrorMessage = (message: string): string => {
+  const i18nKey = BUSINESS_ERROR_I18N_KEYS[message];
+  if (!i18nKey) {
+    return message;
+  }
+  const translated = i18n.t(i18nKey);
+  if (translated && translated !== i18nKey) {
+    return translated;
+  }
+  return BUSINESS_ERROR_FALLBACK_ZH[message] || message;
+};
+
 export const getErrorMessage = (error: GetErrorMessageParams): string => {
   if (typeof error === 'string') {
-    return error;
+    return mapBusinessErrorMessage(error);
   }
 
   if (error instanceof Error || 'code' in error) {
-    return error.message;
+    return mapBusinessErrorMessage(error.message);
   }
 
   if (error.data) {
     if (typeof error.data?.message === 'string') {
-      return error.data.message;
+      return mapBusinessErrorMessage(error.data.message);
     }
 
     if (typeof error.data?.msg === 'string') {
-      return error.data.msg;
+      return mapBusinessErrorMessage(error.data.msg);
     }
 
     if (typeof error.data === 'string') {
-      return error.data;
+      return mapBusinessErrorMessage(error.data);
     }
 
     return JSON.stringify(error.data);