n8n Workflow: ClickUp Approval Tasks with Chat & Polling

Send ClickUp Approval Requests, Then Wait for the Decision—With Chat Alerts & Task Polling

This n8n workflow sub-workflow creates a ClickUp approval task (optionally posts to ClickUp Chat) and then polls the task status until a reviewer approves, requests revisions (with notes), rejects (with a reason), or the request times out. The final decision and reviewer metadata are returned to the calling workflow.

What this workflow does

• Receives an approval request from a parent workflow (or a manual demo run), including a title, summary, reference ID, and requester name.
• Builds the ClickUp task description with reviewer instructions, allowed status names (for approved/revision/rejected), and an optional link back to the n8n execution.
• Creates the approval task in a configured ClickUp list.
• Optionally notifies in ClickUp Chat by posting a one-time message to a selected channel.
• Waits and polls: after a configured interval, it checks the task status and classifies the outcome as approved, revision, rejected, pending, or timed out.
• Sends a reminder once by posting a reminder comment when the timeout threshold is reached.
• Returns results to the parent workflow:
  • For revision or rejection, it fetches the latest ClickUp comment to capture reviewer notes/reason.
  • On timeout, it posts a timeout comment before returning the final outcome.

Use cases

• Automate approvals for internal requests (docs, tickets, change proposals) using ClickUp statuses.
• Route work to reviewers, then automatically continue the n8n workflow based on approval/revision/rejection.
• Notify stakeholders in ClickUp Chat while ensuring the workflow waits for an explicit reviewer decision.

Technical details

• ClickUp API (use a ClickUp API token added as a ClickUp credential in n8n).
• Nodes/logic: if, set, code, wait, switch, sticky note.
• Requires a ClickUp list with three statuses matching your configured approved/revision/rejected names.