ClickUp and Twilio integrate through ClickUp's Webhooks API and REST API to send SMS notifications when task statuses change, assignees are updated, or priority levels escalate, keeping your remote team informed on their phones without relying on ClickUp's built-in notification system alone. This integration suits distributed teams that manage all of their work in ClickUp across multiple spaces and want SMS as a high-priority alert channel for the most critical task events without every task update generating a phone notification. The setup registers a ClickUp webhook on your team workspace, uses a middleware server to filter and route events by list, space, or task priority, and calls the Twilio Messages API to deliver the SMS to the correct assignee.
What You Need Before You Start
Generate a ClickUp personal API token from your ClickUp account settings under Apps, then API Token, and also note your team ID by calling GET https://api.clickup.com/api/v2/team with the Authorization header set to your API token, reading the teams[0].id value from the response. From Twilio, gather your Account SID, Auth Token, and an SMS-capable phone number, and build a phone directory that maps ClickUp user IDs to mobile phone numbers, as ClickUp assignee objects include the user ID and username but not a phone number. Decide which ClickUp event types you want to trigger SMS on by reviewing the available events in the ClickUp webhook documentation, which includes taskStatusUpdated, taskAssigneeUpdated, taskPriorityUpdated, taskCreated, and taskDueDateUpdated among others. Your middleware endpoint must be reachable over HTTPS with a valid certificate, and it should handle the webhook payload within 3 seconds and return HTTP 200, processing all business logic asynchronously to meet ClickUp's delivery expectations.
Step-by-Step Integration Guide
Register a ClickUp webhook by calling POST https://api.clickup.com/api/v2/team/{teamId}/webhook with the Authorization header set to your API token and a JSON body containing endpoint set to your middleware URL such as https://yourapp.com/clickup/webhook and events set to an array of event strings like taskStatusUpdated and taskAssigneeUpdated. ClickUp responds with the webhook object including an id field you should store for management and a health.status field that shows whether the webhook is active. When a task status update event arrives, the payload contains event set to taskStatusUpdated, task_id, and history_items containing the field that changed with curr_val.status for the new status value and prev_val.status for the old one. Fetch the full task to get assignee details by calling GET https://api.clickup.com/api/v2/task/{taskId} with your Authorization header, reading assignees[0].id from the response, looking up the phone from your directory, and sending the SMS via POST https://api.twilio.com/2010-04-01/Accounts/{AccountSid}/Messages.json with a body stating the task name, the old status, and the new status.
Common Issues and How to Fix Them
ClickUp webhooks are workspace-level subscriptions that fire for every task in every space and list in the workspace, producing a very high event volume in large ClickUp environments that can overwhelm your middleware if you process every event synchronously. Immediately enqueue every incoming webhook payload to a job queue such as Redis with BullMQ or AWS SQS and return HTTP 200 before doing any processing, then have queue workers filter and act on events asynchronously to handle volume spikes without dropping events or timing out. The taskStatusUpdated event fires for status changes on subtasks as well as parent tasks, which can cause unexpected SMS messages when subtask statuses are automated by ClickUp's dependency or rollup features. Add a check in your worker for the task object's parent field from the GET task response, and skip sending SMS for tasks where parent is not null unless you specifically want subtask notifications. ClickUp occasionally delivers webhook events out of order when tasks are updated in rapid succession, causing your middleware to briefly show an outdated status in the SMS message body. Fetch the current task status from the ClickUp API at the time of sending rather than trusting the status value from the webhook payload to ensure your SMS always reflects the actual current state.
How to Get More from This Integration
Build a priority escalation alert by filtering for taskPriorityUpdated events where the curr_val.priority.priority value is urgent or high and the previous priority was normal or low, then sending an SMS to both the task assignee and the task's list owner so escalations are never missed by a single person. Create a due date warning system by running a scheduled job that calls GET https://api.clickup.com/api/v2/list/{listId}/task?due_date_lt={tomorrowTimestampMs}&status=open with your Authorization header to retrieve all open tasks due in the next 24 hours, then sending each assignee a single SMS listing their overdue and upcoming tasks grouped by list name. Add inbound SMS handling where team members reply DONE to a task notification SMS and your middleware calls PUT https://api.clickup.com/api/v2/task/{taskId} with a JSON body setting status to done, allowing assignees to close tasks by phone reply without opening the ClickUp app. Use ClickUp custom fields to store a Phone Number custom field value on task records that represent external client deliverables, reading that field from the GET task response to send status update SMS directly to the client rather than an internal team member.
Conclusion
ClickUp and Twilio together give your remote team a direct SMS notification layer on top of your project management system so critical task updates reach the right person immediately regardless of their ClickUp notification settings. Talk to our team at Telphi Consulting to build and configure this integration for your ClickUp workspace.
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