diff --git a/dify_1.9.0/web/app/components/app/configuration/debug/debug-with-multiple-model/chat-item.tsx b/dify_1.9.0/web/app/components/app/configuration/debug/debug-with-multiple-model/chat-item.tsx
index ad4c06bb..219e30f3 100644
--- a/dify_1.9.0/web/app/components/app/configuration/debug/debug-with-multiple-model/chat-item.tsx
+++ b/dify_1.9.0/web/app/components/app/configuration/debug/debug-with-multiple-model/chat-item.tsx
@@ -74,6 +74,7 @@ const ChatItem: FC<ChatItemProps> = ({
     handleRestart,
   } = useChat(
     config,
+    userProfile.id,
     {
       inputs,
       inputsForm,
diff --git a/dify_1.9.0/web/app/components/app/configuration/debug/debug-with-single-model/index.tsx b/dify_1.9.0/web/app/components/app/configuration/debug/debug-with-single-model/index.tsx
index d439b009..e9d8ba59 100644
--- a/dify_1.9.0/web/app/components/app/configuration/debug/debug-with-single-model/index.tsx
+++ b/dify_1.9.0/web/app/components/app/configuration/debug/debug-with-single-model/index.tsx
@@ -80,6 +80,7 @@ const DebugWithSingleModel = (
     handleAnnotationRemoved,
   } = useChat(
     config,
+    userProfile.id,
     {
       inputs,
       inputsForm,
diff --git a/dify_1.9.0/web/app/components/base/chat/chat-with-history/chat-wrapper.tsx b/dify_1.9.0/web/app/components/base/chat/chat-with-history/chat-wrapper.tsx
index cc5e46de..7f3d99c0 100644
--- a/dify_1.9.0/web/app/components/base/chat/chat-with-history/chat-wrapper.tsx
+++ b/dify_1.9.0/web/app/components/base/chat/chat-with-history/chat-wrapper.tsx
@@ -51,6 +51,7 @@ const ChatWrapper = () => {
     setIsResponding,
     allInputsHidden,
     initUserVariables,
+    userIdFromQuery,
   } = useChatWithHistoryContext()
 
   // Semantic variable for better code readability
@@ -76,17 +77,24 @@ const ChatWrapper = () => {
     handleStop,
     isResponding: respondingState,
     suggestedQuestions,
-  } = useChat(
-    appConfig,
-    {
-      inputs: (isHistoryConversation ? currentConversationInputs : newConversationInputs) as any,
-      inputsForm: inputsForms,
+  } = useChat({
+    appData: appData!,
+    appParams: appData?.site.default_language ? { ...appParams, language: appData?.site.default_language } : appParams,
+    isInstalledApp,
+    appId,
+    conversationId: currentConversationId,
+    inputs: currentConversationInputs,
+    promptVariables: allInputsHidden ? currentConversationInputs : {},
+    prevChatList: appPrevChatTree,
+    onNewConversation: handleNewConversationCompleted,
+    onConversationIdChange: (id) => {
+      handleNewConversationCompleted(id)
     },
-    appPrevChatTree,
-    taskId => stopChatMessageResponding('', taskId, isInstalledApp, appId),
-    clearChatList,
-    setClearChatList,
-  )
+    onRespondingChanged: setIsResponding,
+    onClearChatList: clearChatList,
+    onClearChatListFinished: () => setClearChatList(false),
+    user: userIdFromQuery || initUserVariables?.user_id,
+  })
   const inputsFormValue = isHistoryConversation ? currentConversationInputs : newConversationInputsRef?.current
   const inputDisabled = useMemo(() => {
     if (allInputsHidden)
diff --git a/dify_1.9.0/web/app/components/base/chat/chat-with-history/context.tsx b/dify_1.9.0/web/app/components/base/chat/chat-with-history/context.tsx
index 03a03991..b73750c4 100644
--- a/dify_1.9.0/web/app/components/base/chat/chat-with-history/context.tsx
+++ b/dify_1.9.0/web/app/components/base/chat/chat-with-history/context.tsx
@@ -60,6 +60,7 @@ export type ChatWithHistoryContextValue = {
     name?: string
     avatar_url?: string
   }
+  userIdFromQuery?: string
 }
 
 export const ChatWithHistoryContext = createContext<ChatWithHistoryContextValue>({
@@ -95,5 +96,6 @@ export const ChatWithHistoryContext = createContext<ChatWithHistoryContextValue>
   setCurrentConversationInputs: noop,
   allInputsHidden: false,
   initUserVariables: {},
+  userIdFromQuery: '',
 })
 export const useChatWithHistoryContext = () => useContext(ChatWithHistoryContext)
diff --git a/dify_1.9.0/web/app/components/base/chat/chat-with-history/hooks.tsx b/dify_1.9.0/web/app/components/base/chat/chat-with-history/hooks.tsx
index fb3e1bb8..35e93534 100644
--- a/dify_1.9.0/web/app/components/base/chat/chat-with-history/hooks.tsx
+++ b/dify_1.9.0/web/app/components/base/chat/chat-with-history/hooks.tsx
@@ -16,7 +16,7 @@ import type {
   Feedback,
 } from '../types'
 import { CONVERSATION_ID_INFO } from '../constants'
-import { buildChatItemTree, getProcessedSystemVariablesFromUrlParams, getRawInputsFromUrlParams, getRawUserVariablesFromUrlParams } from '../utils'
+import { buildChatItemTree, getProcessedSystemVariablesFromUrlParams, getRawInputsFromUrlParams, getRawUserVariablesFromUrlParams, getUserIdFromUrlParams } from '../utils'
 import { addFileInfos, sortAgentSorts } from '../../../tools/utils'
 import { getProcessedFilesFromResponse } from '@/app/components/base/file-uploader/utils'
 import {
@@ -68,7 +68,7 @@ function getFormattedChatList(messages: any[]) {
   return newChatList
 }
 
-export const useChatWithHistory = (installedAppInfo?: InstalledApp) => {
+export const useChatWithHistory = (installedAppInfo?: InstalledApp, user_id?: string) => {
   const isInstalledApp = useMemo(() => !!installedAppInfo, [installedAppInfo])
   const appInfo = useWebAppStore(s => s.appInfo)
   const appParams = useWebAppStore(s => s.appParams)
@@ -108,11 +108,18 @@ export const useChatWithHistory = (installedAppInfo?: InstalledApp) => {
   const appId = useMemo(() => appData?.app_id, [appData])
 
   const [userId, setUserId] = useState<string>()
+  const [userIdFromQuery, setUserIdFromQuery] = useState<string>('')
   useEffect(() => {
-    getProcessedSystemVariablesFromUrlParams().then(({ user_id }) => {
+    if (user_id)
       setUserId(user_id)
-    })
-  }, [])
+    else
+      getProcessedSystemVariablesFromUrlParams().then(({ user_id }) => {
+        setUserId(user_id)
+      })
+    // Get userid from URL query parameter
+    const queryUserId = getUserIdFromUrlParams()
+    setUserIdFromQuery(queryUserId)
+  }, [user_id])
 
   useEffect(() => {
     const setLocaleFromProps = async () => {
@@ -570,5 +577,6 @@ export const useChatWithHistory = (installedAppInfo?: InstalledApp) => {
     setCurrentConversationInputs,
     allInputsHidden,
     initUserVariables,
+    userIdFromQuery,
   }
 }
diff --git a/dify_1.9.0/web/app/components/base/chat/chat-with-history/index.tsx b/dify_1.9.0/web/app/components/base/chat/chat-with-history/index.tsx
index 464e30a8..5ef8431d 100644
--- a/dify_1.9.0/web/app/components/base/chat/chat-with-history/index.tsx
+++ b/dify_1.9.0/web/app/components/base/chat/chat-with-history/index.tsx
@@ -22,6 +22,7 @@ import { checkOrSetAccessToken } from '@/app/components/share/utils'
 import AppUnavailable from '@/app/components/base/app-unavailable'
 import cn from '@/utils/classnames'
 import useDocumentTitle from '@/hooks/use-document-title'
+import { useSearchParams } from 'next/navigation'
 
 type ChatWithHistoryProps = {
   className?: string
@@ -40,6 +41,8 @@ const ChatWithHistory: FC<ChatWithHistoryProps> = ({
   const isSidebarCollapsed = sidebarCollapseState
   const customConfig = appData?.custom_config
   const site = appData?.site
+  const searchParams = useSearchParams()
+  const userid = searchParams.get('userid')
 
   const [showSidePanel, setShowSidePanel] = useState(false)
 
@@ -109,6 +112,8 @@ const ChatWithHistoryWrap: FC<ChatWithHistoryWrapProps> = ({
   const media = useBreakpoints()
   const isMobile = media === MediaType.mobile
   const themeBuilder = useThemeContext()
+  const searchParams = useSearchParams()
+  const userid = searchParams.get('userid')
 
   const {
     appData,
@@ -148,7 +153,8 @@ const ChatWithHistoryWrap: FC<ChatWithHistoryWrapProps> = ({
     setCurrentConversationInputs,
     allInputsHidden,
     initUserVariables,
-  } = useChatWithHistory(installedAppInfo)
+    userIdFromQuery,
+  } = useChatWithHistory(installedAppInfo, userid)
 
   return (
     <ChatWithHistoryContext.Provider value={{
@@ -191,6 +197,7 @@ const ChatWithHistoryWrap: FC<ChatWithHistoryWrapProps> = ({
       setCurrentConversationInputs,
       allInputsHidden,
       initUserVariables,
+      userIdFromQuery,
     }}>
       <ChatWithHistory className={className} />
     </ChatWithHistoryContext.Provider>
diff --git a/dify_1.9.0/web/app/components/base/chat/chat/hooks.ts b/dify_1.9.0/web/app/components/base/chat/chat/hooks.ts
index 665e7e8b..5bc61889 100644
--- a/dify_1.9.0/web/app/components/base/chat/chat/hooks.ts
+++ b/dify_1.9.0/web/app/components/base/chat/chat/hooks.ts
@@ -46,6 +46,7 @@ type SendCallback = {
 
 export const useChat = (
   config?: ChatConfig,
+  user?: string,
   formSettings?: {
     inputs: Inputs
     inputsForm: InputForm[]
@@ -276,6 +277,7 @@ export const useChat = (
     const bodyParams = {
       response_mode: 'streaming',
       conversation_id: conversationId.current,
+      user: user || '',
       files: getProcessedFiles(files || []),
       query,
       inputs: getProcessedInputs(inputs || {}, formSettings?.inputsForm || []),
diff --git a/dify_1.9.0/web/app/components/base/chat/embedded-chatbot/chat-wrapper.tsx b/dify_1.9.0/web/app/components/base/chat/embedded-chatbot/chat-wrapper.tsx
index 14a291e9..45443256 100644
--- a/dify_1.9.0/web/app/components/base/chat/embedded-chatbot/chat-wrapper.tsx
+++ b/dify_1.9.0/web/app/components/base/chat/embedded-chatbot/chat-wrapper.tsx
@@ -51,6 +51,7 @@ const ChatWrapper = () => {
     setIsResponding,
     allInputsHidden,
     initUserVariables,
+    userIdFromQuery,
   } = useEmbeddedChatbotContext()
   const appConfig = useMemo(() => {
     const config = appParams || {}
@@ -74,6 +75,7 @@ const ChatWrapper = () => {
     suggestedQuestions,
   } = useChat(
     appConfig,
+    userIdFromQuery || initUserVariables?.user_id,
     {
       inputs: (currentConversationId ? currentConversationInputs : newConversationInputs) as any,
       inputsForm: inputsForms,
diff --git a/dify_1.9.0/web/app/components/base/chat/embedded-chatbot/context.tsx b/dify_1.9.0/web/app/components/base/chat/embedded-chatbot/context.tsx
index 544da253..ef0b9dfb 100644
--- a/dify_1.9.0/web/app/components/base/chat/embedded-chatbot/context.tsx
+++ b/dify_1.9.0/web/app/components/base/chat/embedded-chatbot/context.tsx
@@ -56,6 +56,7 @@ export type EmbeddedChatbotContextValue = {
     name?: string
     avatar_url?: string
   }
+  userIdFromQuery?: string
 }
 
 export const EmbeddedChatbotContext = createContext<EmbeddedChatbotContextValue>({
@@ -86,5 +87,6 @@ export const EmbeddedChatbotContext = createContext<EmbeddedChatbotContextValue>
   setCurrentConversationInputs: noop,
   allInputsHidden: false,
   initUserVariables: {},
+  userIdFromQuery: '',
 })
 export const useEmbeddedChatbotContext = () => useContext(EmbeddedChatbotContext)
diff --git a/dify_1.9.0/web/app/components/base/chat/embedded-chatbot/hooks.tsx b/dify_1.9.0/web/app/components/base/chat/embedded-chatbot/hooks.tsx
index 14a32860..ec26d3bf 100644
--- a/dify_1.9.0/web/app/components/base/chat/embedded-chatbot/hooks.tsx
+++ b/dify_1.9.0/web/app/components/base/chat/embedded-chatbot/hooks.tsx
@@ -15,7 +15,7 @@ import type {
   Feedback,
 } from '../types'
 import { CONVERSATION_ID_INFO } from '../constants'
-import { buildChatItemTree, getProcessedInputsFromUrlParams, getProcessedSystemVariablesFromUrlParams, getProcessedUserVariablesFromUrlParams } from '../utils'
+import { buildChatItemTree, getProcessedInputsFromUrlParams, getProcessedSystemVariablesFromUrlParams, getProcessedUserVariablesFromUrlParams, getUserIdFromUrlParams } from '../utils'
 import { getProcessedFilesFromResponse } from '../../file-uploader/utils'
 import {
   fetchAppInfo,
@@ -82,11 +82,15 @@ export const useEmbeddedChatbot = () => {
 
   const [userId, setUserId] = useState<string>()
   const [conversationId, setConversationId] = useState<string>()
+  const [userIdFromQuery, setUserIdFromQuery] = useState<string>('')
   useEffect(() => {
     getProcessedSystemVariablesFromUrlParams().then(({ user_id, conversation_id }) => {
       setUserId(user_id)
       setConversationId(conversation_id)
     })
+    // Get userid from URL query parameter
+    const queryUserId = getUserIdFromUrlParams()
+    setUserIdFromQuery(queryUserId)
   }, [])
 
   useEffect(() => {
@@ -436,5 +440,6 @@ export const useEmbeddedChatbot = () => {
     setCurrentConversationInputs,
     allInputsHidden,
     initUserVariables,
+    userIdFromQuery,
   }
 }
diff --git a/dify_1.9.0/web/app/components/base/chat/embedded-chatbot/index.tsx b/dify_1.9.0/web/app/components/base/chat/embedded-chatbot/index.tsx
index e23b5ec3..cea4ec35 100644
--- a/dify_1.9.0/web/app/components/base/chat/embedded-chatbot/index.tsx
+++ b/dify_1.9.0/web/app/components/base/chat/embedded-chatbot/index.tsx
@@ -114,6 +114,7 @@ const EmbeddedChatbotWrapper = () => {
     setCurrentConversationInputs,
     allInputsHidden,
     initUserVariables,
+    userIdFromQuery,
   } = useEmbeddedChatbot()
 
   return <EmbeddedChatbotContext.Provider value={{
@@ -151,6 +152,7 @@ const EmbeddedChatbotWrapper = () => {
     setCurrentConversationInputs,
     allInputsHidden,
     initUserVariables,
+    userIdFromQuery,
   }}>
     <Chatbot />
   </EmbeddedChatbotContext.Provider>
diff --git a/dify_1.9.0/web/app/components/base/chat/utils.ts b/dify_1.9.0/web/app/components/base/chat/utils.ts
index 34df617a..fdfeebc2 100644
--- a/dify_1.9.0/web/app/components/base/chat/utils.ts
+++ b/dify_1.9.0/web/app/components/base/chat/utils.ts
@@ -88,6 +88,12 @@ async function getRawUserVariablesFromUrlParams(): Promise<Record<string, any>>
   return userVariables
 }
 
+function getUserIdFromUrlParams(): string {
+  const urlParams = new URLSearchParams(window.location.search)
+  const userId = urlParams.get('userid')
+  return userId ? decodeURIComponent(userId) : ''
+}
+
 function isValidGeneratedAnswer(item?: ChatItem | ChatItemInTree): boolean {
   return !!item && item.isAnswer && !item.id.startsWith('answer-placeholder-') && !item.isOpeningStatement
 }
@@ -236,6 +242,7 @@ export {
   getProcessedSystemVariablesFromUrlParams,
   getProcessedUserVariablesFromUrlParams,
   getRawUserVariablesFromUrlParams,
+  getUserIdFromUrlParams,
   isValidGeneratedAnswer,
   getLastAnswer,
   buildChatItemTree,
diff --git a/dify_1.9.0/web/app/components/share/text-generation/index.tsx b/dify_1.9.0/web/app/components/share/text-generation/index.tsx
index f62332e5..27b71bfe 100644
--- a/dify_1.9.0/web/app/components/share/text-generation/index.tsx
+++ b/dify_1.9.0/web/app/components/share/text-generation/index.tsx
@@ -41,6 +41,7 @@ import { AccessMode } from '@/models/access-control'
 import { useGlobalPublicStore } from '@/context/global-public-context'
 import useDocumentTitle from '@/hooks/use-document-title'
 import { useWebAppStore } from '@/context/web-app-context'
+import { getUserIdFromUrlParams } from '@/app/components/base/chat/utils'
 
 const GROUP_SIZE = 5 // to avoid RPM(Request per minute) limit. The group task finished then the next group.
 enum TaskStatus {
@@ -125,6 +126,13 @@ const TextGeneration: FC<IMainProps> = ({
     transfer_methods: [TransferMethod.local_file],
   })
   const [completionFiles, setCompletionFiles] = useState<VisionFile[]>([])
+  const [userIdFromQuery, setUserIdFromQuery] = useState<string>('')
+  
+  useEffect(() => {
+    // Get userid from URL query parameter
+    const queryUserId = getUserIdFromUrlParams()
+    setUserIdFromQuery(queryUserId)
+  }, [])
 
   const handleSend = () => {
     setIsCallBatchAPI(false)
@@ -433,6 +441,7 @@ const TextGeneration: FC<IMainProps> = ({
     isShowTextToSpeech={!!textToSpeechConfig?.enabled}
     siteInfo={siteInfo}
     onRunStart={() => setResultExisted(true)}
+    userIdFromQuery={userIdFromQuery}
   />)
 
   const renderBatchRes = () => {
diff --git a/dify_1.9.0/web/app/components/share/text-generation/result/index.tsx b/dify_1.9.0/web/app/components/share/text-generation/result/index.tsx
index a7eb7f75..2a4eef1e 100644
--- a/dify_1.9.0/web/app/components/share/text-generation/result/index.tsx
+++ b/dify_1.9.0/web/app/components/share/text-generation/result/index.tsx
@@ -46,6 +46,7 @@ export type IResultProps = {
   completionFiles: VisionFile[]
   siteInfo: SiteInfo | null
   onRunStart: () => void
+  userIdFromQuery?: string
 }
 
 const Result: FC<IResultProps> = ({
@@ -71,6 +72,7 @@ const Result: FC<IResultProps> = ({
   completionFiles,
   siteInfo,
   onRunStart,
+  userIdFromQuery,
 }) => {
   const [isResponding, { setTrue: setRespondingTrue, setFalse: setRespondingFalse }] = useBoolean(false)
   useEffect(() => {
@@ -162,6 +164,7 @@ const Result: FC<IResultProps> = ({
 
     const data: Record<string, any> = {
       inputs: formatBooleanInputs(promptConfig?.prompt_variables, inputs),
+      user: userIdFromQuery || '',
     }
     if (visionConfig.enabled && completionFiles && completionFiles?.length > 0) {
       data.files = completionFiles.map((item) => {
diff --git a/dify_1.9.0/web/app/components/workflow/panel/debug-and-preview/chat-wrapper.tsx b/dify_1.9.0/web/app/components/workflow/panel/debug-and-preview/chat-wrapper.tsx
index 1a97357d..523e9313 100644
--- a/dify_1.9.0/web/app/components/workflow/panel/debug-and-preview/chat-wrapper.tsx
+++ b/dify_1.9.0/web/app/components/workflow/panel/debug-and-preview/chat-wrapper.tsx
@@ -23,6 +23,7 @@ import { getLastAnswer, isValidGeneratedAnswer } from '@/app/components/base/cha
 import type { FileEntity } from '@/app/components/base/file-uploader/types'
 import { useEventEmitterContextContext } from '@/context/event-emitter'
 import { EVENT_WORKFLOW_STOP } from '@/app/components/workflow/variable-inspect/types'
+import { useAppContext } from '@/context/app-context'
 
 type ChatWrapperProps = {
   showConversationVariableModal: boolean
@@ -42,6 +43,7 @@ const ChatWrapper = (
     ref: React.RefObject<ChatWrapperRefType>;
   },
 ) => {
+  const { userProfile } = useAppContext()
   const nodes = useNodes<StartNodeType>()
   const startNode = nodes.find(node => node.data.type === BlockEnum.Start)
   const startVariables = startNode?.data.variables
@@ -89,6 +91,7 @@ const ChatWrapper = (
     setTargetMessageId,
   } = useChat(
     config,
+    userProfile.id,
     {
       inputs,
       inputsForm: (startVariables || []) as any,