Send message and wait for response in Gmail not working: "No action required"

[pbdco]

Describe the problem/error/question

When using “Send message and wait for response in Gmail” tool in an AI agent, the email is sent with the Approve/Disapprove buttons, but when clicking on the Approve button, I get “No action required“ message in the window opened at the button URL

(e.g. https://my-n8n.app.n8n.cloud/webhook-waiting/2/4339644a-e750-4317-9b22-f84ccc2527ba?approved=true&signature=b75ed1df70bfc1da239f4a1e4b93746e2cee327209f771617bc476832e4f024d)

The execution status remains as “Waiting“.

• Expected behavior:
  • After clicking on Approve/Disapprove button, the workflow should continue or conclude the execution. (AI Agent should reply).

Workflow:

Output returned by the last node

No output, execution just stays in “Waiting” status, even after clicking the “Approbe“ button.

Information on your n8n setup

• n8n version: lateast 1.121.3, n8ncloud
• Database (default: SQLite): (n8n cloud)
• n8n EXECUTIONS_PROCESS setting (default: own, main): (n8n cloud)
• Running n8n via (Docker, npm, n8n cloud, desktop app): n8n cloud
• Operating system: n8n cloud

[pbdco]

Opened issue: AI Agent tool error: Send message and wait for response in Gmail not working: “No action required” · Issue #22483 · n8n-io/n8n · GitHub

[rajnish_sharma]

I think you need to use gmail node seprate not as a tool calling ,sharing my workflow scrrenshot for referece, it is working as expected