diff --git a/web/service/workflow-payload.ts b/web/service/workflow-payload.ts
new file mode 100644
index 0000000000..f0db7e8397
--- /dev/null
+++ b/web/service/workflow-payload.ts
@@ -0,0 +1,62 @@
+import { BlockEnum } from '@/app/components/workflow/types'
+import type { Node } from '@/app/components/workflow/types'
+import type { FetchWorkflowDraftResponse } from '@/types/workflow'
+
+export type TriggerPluginNodePayload = {
+  title: string
+  desc?: string
+  plugin_id: string
+  provider_id: string
+  event_name: string
+  subscription_id: string
+  plugin_unique_identifier: string
+  event_parameters: Record<string, unknown>
+}
+
+export type WorkflowDraftSyncParams = Pick<
+  FetchWorkflowDraftResponse,
+  'graph' | 'features' | 'environment_variables' | 'conversation_variables'
+>
+
+const sanitizeTriggerPluginNode = (node: Node<TriggerPluginNodePayload>): Node<TriggerPluginNodePayload> => {
+  const data = node.data
+
+  if (!data || data.type !== BlockEnum.TriggerPlugin)
+    return node
+
+  const sanitizedData: TriggerPluginNodePayload & { type: BlockEnum.TriggerPlugin } = {
+    type: BlockEnum.TriggerPlugin,
+    title: data.title ?? '',
+    desc: data.desc,
+    plugin_id: data.plugin_id ?? '',
+    provider_id: data.provider_id ?? '',
+    event_name: data.event_name ?? '',
+    subscription_id: data.subscription_id ?? '',
+    plugin_unique_identifier: data.plugin_unique_identifier ?? '',
+    event_parameters: (typeof data.event_parameters === 'object' && data.event_parameters !== null)
+      ? data.event_parameters as Record<string, unknown>
+      : {},
+  }
+
+  return {
+    ...node,
+    data: sanitizedData,
+  }
+}
+
+export const sanitizeWorkflowDraftPayload = (params: WorkflowDraftSyncParams): WorkflowDraftSyncParams => {
+  const { graph } = params
+
+  if (!graph?.nodes?.length)
+    return params
+
+  const sanitizedNodes = graph.nodes.map(node => sanitizeTriggerPluginNode(node as Node<TriggerPluginNodePayload>))
+
+  return {
+    ...params,
+    graph: {
+      ...graph,
+      nodes: sanitizedNodes,
+    },
+  }
+}
diff --git a/web/service/workflow.ts b/web/service/workflow.ts
index 654fe3d01a..19279f2a03 100644
--- a/web/service/workflow.ts
+++ b/web/service/workflow.ts
@@ -12,6 +12,8 @@ import type { BlockEnum } from '@/app/components/workflow/types'
 import type { VarInInspect } from '@/types/workflow'
 import type { FlowType } from '@/types/common'
 import { getFlowPrefix } from './utils'
+import { sanitizeWorkflowDraftPayload } from './workflow-payload'
+import type { WorkflowDraftSyncParams } from './workflow-payload'
 
 export const fetchWorkflowDraft = (url: string) => {
   return get(url, {}, { silent: true }) as Promise<FetchWorkflowDraftResponse>
@@ -19,9 +21,10 @@ export const fetchWorkflowDraft = (url: string) => {
 
 export const syncWorkflowDraft = ({ url, params }: {
   url: string
-  params: Pick<FetchWorkflowDraftResponse, 'graph' | 'features' | 'environment_variables' | 'conversation_variables'>
+  params: WorkflowDraftSyncParams
 }) => {
-  return post<CommonResponse & { updated_at: number; hash: string }>(url, { body: params }, { silent: true })
+  const sanitizedParams = sanitizeWorkflowDraftPayload(params)
+  return post<CommonResponse & { updated_at: number; hash: string }>(url, { body: sanitizedParams }, { silent: true })
 }
 
 export const fetchNodesDefaultConfigs: Fetcher<NodesDefaultConfigsResponse, string> = (url) => {