diff --git a/web/app/components/workflow/header/run-mode.tsx b/web/app/components/workflow/header/run-mode.tsx
index 1a101bc6d2..5c225156ac 100644
--- a/web/app/components/workflow/header/run-mode.tsx
+++ b/web/app/components/workflow/header/run-mode.tsx
@@ -32,7 +32,7 @@ const RunMode = ({
     handleWorkflowRunAllTriggersInWorkflow,
   } = useWorkflowStartRun()
   const { handleStopRun } = useWorkflowRun()
-  const { validateBeforeRun, warningNodes } = useWorkflowRunValidation()
+  const { warningNodes } = useWorkflowRunValidation()
   const workflowRunningData = useStore(s => s.workflowRunningData)
   const isListening = useStore(s => s.isListening)
 
@@ -98,14 +98,7 @@ const RunMode = ({
       // Placeholder for trigger-specific execution logic for schedule, webhook, plugin types
       console.log('TODO: Handle trigger execution for type:', option.type, 'nodeId:', option.nodeId)
     }
-  }, [
-    validateBeforeRun,
-    handleWorkflowStartRunInWorkflow,
-    handleWorkflowTriggerScheduleRunInWorkflow,
-    handleWorkflowTriggerWebhookRunInWorkflow,
-    handleWorkflowTriggerPluginRunInWorkflow,
-    handleWorkflowRunAllTriggersInWorkflow,
-  ])
+  }, [warningNodes, notify, t, handleWorkflowStartRunInWorkflow, handleWorkflowTriggerScheduleRunInWorkflow, handleWorkflowTriggerWebhookRunInWorkflow, handleWorkflowTriggerPluginRunInWorkflow, handleWorkflowRunAllTriggersInWorkflow])
 
   const { eventEmitter } = useEventEmitterContextContext()
   eventEmitter?.useSubscription((v: any) => {
diff --git a/web/app/components/workflow/nodes/_base/hooks/use-one-step-run.ts b/web/app/components/workflow/nodes/_base/hooks/use-one-step-run.ts
index 7288397f7d..06843eacef 100644
--- a/web/app/components/workflow/nodes/_base/hooks/use-one-step-run.ts
+++ b/web/app/components/workflow/nodes/_base/hooks/use-one-step-run.ts
@@ -316,20 +316,7 @@ const useOneStepRun = <T>({
         invalidateSysVarValues()
       invalidateConversationVarValues() // loop, iteration, variable assigner node can update the conversation variables, but to simple the logic(some nodes may also can update in the future), all nodes refresh.
     }
-  }, [
-    isRunAfterSingleRun,
-    runningStatus,
-    flowId,
-    id,
-    store,
-    appendNodeInspectVars,
-    updateNodeInspectRunningState,
-    invalidLastRun,
-    isStartNode,
-    isTriggerNode,
-    invalidateSysVarValues,
-    invalidateConversationVarValues,
-  ])
+  }, [isRunAfterSingleRun, runningStatus, flowType, flowId, id, store, appendNodeInspectVars, updateNodeInspectRunningState, invalidLastRun, isStartNode, isTriggerNode, invalidateSysVarValues, invalidateConversationVarValues])
 
   const { handleNodeDataUpdate }: { handleNodeDataUpdate: (data: any) => void } = useNodeDataUpdate()
   const setNodeRunning = () => {
diff --git a/web/app/components/workflow/nodes/human-input/components/user-action.tsx b/web/app/components/workflow/nodes/human-input/components/user-action.tsx
index b109d6653e..9868ea4393 100644
--- a/web/app/components/workflow/nodes/human-input/components/user-action.tsx
+++ b/web/app/components/workflow/nodes/human-input/components/user-action.tsx
@@ -7,10 +7,12 @@ import * as React from 'react'
 import { useTranslation } from 'react-i18next'
 import Button from '@/app/components/base/button'
 import Input from '@/app/components/base/input'
-import { genActionId } from '../utils'
+import Toast from '@/app/components/base/toast'
 import ButtonStyleDropdown from './button-style-dropdown'
 
 const i18nPrefix = 'nodes.humanInput'
+const ACTION_ID_MAX_LENGTH = 20
+const BUTTON_TEXT_MAX_LENGTH = 40
 
 type UserActionItemProps = {
   data: UserAction
@@ -28,17 +30,42 @@ const UserActionItem: FC<UserActionItemProps> = ({
   const { t } = useTranslation()
 
   const handleIDChange = (e: React.ChangeEvent<HTMLInputElement>) => {
-    if (!e.target.value.trim())
-      onChange({ ...data, id: genActionId() })
-    else
-      onChange({ ...data, id: e.target.value })
+    const value = e.target.value
+    if (!value.trim()) {
+      onChange({ ...data, id: '' })
+      return
+    }
+    // Convert spaces to underscores, then only allow characters matching /^[A-Za-z_][A-Za-z0-9_]*$/
+    const withUnderscores = value.replace(/ /g, '_')
+    let sanitized = withUnderscores
+      .split('')
+      .filter((char, index) => {
+        if (index === 0)
+          return /^[a-z_]$/i.test(char)
+        return /^\w$/.test(char)
+      })
+      .join('')
+
+    if (sanitized !== withUnderscores)
+      Toast.notify({ type: 'error', message: t(`${i18nPrefix}.userActions.invalidActionIdFormat`, { ns: 'workflow' }) })
+
+    // Limit to 20 characters
+    if (sanitized.length > ACTION_ID_MAX_LENGTH) {
+      sanitized = sanitized.slice(0, ACTION_ID_MAX_LENGTH)
+      Toast.notify({ type: 'error', message: t(`${i18nPrefix}.userActions.actionIdTooLong`, { ns: 'workflow' }) })
+    }
+
+    if (sanitized)
+      onChange({ ...data, id: sanitized })
   }
 
   const handleTextChange = (e: React.ChangeEvent<HTMLInputElement>) => {
-    if (!e.target.value.trim())
-      onChange({ ...data, title: 'Button Text' })
-    else
-      onChange({ ...data, title: e.target.value })
+    let value = e.target.value
+    if (value.length > BUTTON_TEXT_MAX_LENGTH) {
+      value = value.slice(0, BUTTON_TEXT_MAX_LENGTH)
+      Toast.notify({ type: 'error', message: t(`${i18nPrefix}.userActions.buttonTextTooLong`, { ns: 'workflow' }) })
+    }
+    onChange({ ...data, title: value })
   }
 
   return (
diff --git a/web/app/components/workflow/nodes/human-input/default.ts b/web/app/components/workflow/nodes/human-input/default.ts
index b9b95ae1cc..e3d5c7ae1e 100644
--- a/web/app/components/workflow/nodes/human-input/default.ts
+++ b/web/app/components/workflow/nodes/human-input/default.ts
@@ -42,6 +42,25 @@ const nodeDefault: NodeDefault<HumanInputNodeType> = {
     if (!errorMessages && !payload.user_actions.length)
       errorMessages = t(`${i18nPrefix}.noUserActions`, { ns: 'workflow' })
 
+    if (!errorMessages && payload.user_actions.length > 0) {
+      const actionIds = payload.user_actions.map(action => action.id)
+      const hasDuplicateIds = actionIds.length !== new Set(actionIds).size
+      if (hasDuplicateIds)
+        errorMessages = t(`${i18nPrefix}.duplicateActionId`, { ns: 'workflow' })
+    }
+
+    if (!errorMessages && payload.user_actions.length > 0) {
+      const hasEmptyId = payload.user_actions.some(action => !action.id?.trim())
+      if (hasEmptyId)
+        errorMessages = t(`${i18nPrefix}.emptyActionId`, { ns: 'workflow' })
+    }
+
+    if (!errorMessages && payload.user_actions.length > 0) {
+      const hasEmptyTitle = payload.user_actions.some(action => !action.title?.trim())
+      if (hasEmptyTitle)
+        errorMessages = t(`${i18nPrefix}.emptyActionTitle`, { ns: 'workflow' })
+    }
+
     return {
       isValid: !errorMessages,
       errorMessage: errorMessages,
diff --git a/web/i18n/en-US/workflow.json b/web/i18n/en-US/workflow.json
index 80c7fa153b..421267a484 100644
--- a/web/i18n/en-US/workflow.json
+++ b/web/i18n/en-US/workflow.json
@@ -558,6 +558,9 @@
   "nodes.humanInput.deliveryMethod.types.webapp.description": "Display to end-user in webapp",
   "nodes.humanInput.deliveryMethod.types.webapp.title": "Webapp",
   "nodes.humanInput.editor.previewTip": "In preview mode, action buttons are not functional.",
+  "nodes.humanInput.errorMsg.duplicateActionId": "Duplicate action ID found in user actions",
+  "nodes.humanInput.errorMsg.emptyActionId": "Action ID cannot be empty",
+  "nodes.humanInput.errorMsg.emptyActionTitle": "Action title cannot be empty",
   "nodes.humanInput.errorMsg.noDeliveryMethod": "Please select at least one delivery method",
   "nodes.humanInput.errorMsg.noDeliveryMethodEnabled": "Please enable at least one delivery method",
   "nodes.humanInput.errorMsg.noUserActions": "Please add at least one user action",
@@ -586,10 +589,13 @@
   "nodes.humanInput.timeout.days": "Days",
   "nodes.humanInput.timeout.hours": "Hours",
   "nodes.humanInput.timeout.title": "Timeout",
+  "nodes.humanInput.userActions.actionIdTooLong": "Action ID must be 20 characters or less",
   "nodes.humanInput.userActions.actionNamePlaceholder": "Action Name",
   "nodes.humanInput.userActions.buttonTextPlaceholder": "Button display Text",
+  "nodes.humanInput.userActions.buttonTextTooLong": "Button text must be 40 characters or less",
   "nodes.humanInput.userActions.chooseStyle": "Choose a button style",
   "nodes.humanInput.userActions.emptyTip": "Click the '+' button to add user actions",
+  "nodes.humanInput.userActions.invalidActionIdFormat": "Action ID must start with a letter or underscore, followed by letters, numbers, or underscores",
   "nodes.humanInput.userActions.title": "User Actions",
   "nodes.humanInput.userActions.tooltip": "Define buttons that users can click to respond to this form. Each button can trigger different workflow paths.",
   "nodes.humanInput.userActions.triggered": "<strong>{{actionName}}</strong> has been triggered",
diff --git a/web/i18n/zh-Hans/workflow.json b/web/i18n/zh-Hans/workflow.json
index 11651a7478..c6069701e1 100644
--- a/web/i18n/zh-Hans/workflow.json
+++ b/web/i18n/zh-Hans/workflow.json
@@ -558,6 +558,9 @@
   "nodes.humanInput.deliveryMethod.types.webapp.description": "在 Web 应用中显示给最终用户",
   "nodes.humanInput.deliveryMethod.types.webapp.title": "Webapp",
   "nodes.humanInput.editor.previewTip": "在预览模式下，操作按钮无法使用。",
+  "nodes.humanInput.errorMsg.duplicateActionId": "用户操作中存在重复的操作 ID",
+  "nodes.humanInput.errorMsg.emptyActionId": "操作 ID 不能为空",
+  "nodes.humanInput.errorMsg.emptyActionTitle": "操作标题不能为空",
   "nodes.humanInput.errorMsg.noDeliveryMethod": "请至少选择一种提交方式",
   "nodes.humanInput.errorMsg.noDeliveryMethodEnabled": "请至少启用一种提交方式",
   "nodes.humanInput.errorMsg.noUserActions": "请添加至少一个用户操作",
@@ -586,10 +589,13 @@
   "nodes.humanInput.timeout.days": "日",
   "nodes.humanInput.timeout.hours": "小时",
   "nodes.humanInput.timeout.title": "超时设置",
+  "nodes.humanInput.userActions.actionIdTooLong": "操作 ID 不能超过 20 个字符",
   "nodes.humanInput.userActions.actionNamePlaceholder": "操作名称",
   "nodes.humanInput.userActions.buttonTextPlaceholder": "按钮显示文本",
+  "nodes.humanInput.userActions.buttonTextTooLong": "按钮文本不能超过 40 个字符",
   "nodes.humanInput.userActions.chooseStyle": "选择按钮样式",
   "nodes.humanInput.userActions.emptyTip": "点击 '+' 按钮添加用户操作",
+  "nodes.humanInput.userActions.invalidActionIdFormat": "操作 ID 必须以字母或下划线开头，后跟字母、数字或下划线",
   "nodes.humanInput.userActions.title": "用户操作",
   "nodes.humanInput.userActions.tooltip": "定义用户可以点击以响应此表单的按钮。每个按钮都可以触发不同的工作流路径。",
   "nodes.humanInput.userActions.triggered": "已触发<strong>{{actionName}}</strong>",