Monday.com and Twilio connect through Monday's GraphQL API and its webhook subscription system, letting you fire SMS notifications the moment a board item changes status, is assigned to a team member, or crosses a deadline. This integration suits operations teams, project managers, and client-facing teams that need real-time SMS alerts without relying on anyone checking the Monday.com board manually. The connection uses a Monday.com webhook to detect board events, a middleware endpoint to receive and interpret those events, and the Twilio Messages API to deliver the notification to the right person.
What You Need Before You Start
You need a Monday.com account at the Standard plan or higher to access the API and Automations features, and a Monday.com API token from your avatar menu, then Admin, then API. The Monday.com API operates exclusively over GraphQL and all requests go to POST https://api.monday.com/v2 with an Authorization header set to your API token. From Twilio, gather your Account SID, Auth Token, and an SMS-enabled phone number, and note the board ID of the Monday.com board you want to monitor by opening the board and reading the numeric ID from the browser URL. Your middleware server needs a publicly accessible HTTPS endpoint to receive Monday.com webhook payloads, as Monday requires a valid SSL certificate and a sub-2-second 200 OK response on the first delivery to confirm webhook registration.
Step-by-Step Integration Guide
Create a Monday.com webhook subscription by sending a GraphQL mutation to POST https://api.monday.com/v2 with the body containing the mutation create_webhook with arguments board_id set to your numeric board ID, url set to your middleware endpoint such as https://yourapp.com/monday/webhook, and event set to change_column_value to capture every status and column update. The response returns a webhook id you should store for later management, and Monday.com will immediately send a test ping to your endpoint to verify it responds with HTTP 200. When a board event fires, Monday.com sends a JSON POST to your endpoint with a payload containing event.boardId, event.itemId, event.columnId, event.value, and event.previousValue, which you parse to determine what changed. After identifying the relevant item and change, look up the assignee phone number by querying the item's column values via POST https://api.monday.com/v2 with a GraphQL query like items(ids: [{itemId}]) { column_values { id text } } filtering for your phone column, then call POST https://api.twilio.com/2010-04-01/Accounts/{AccountSid}/Messages.json with To set to the phone and Body set to a message describing the status change.
Common Issues and How to Fix Them
Monday.com webhook registration fails with a timeout error when your middleware endpoint does not respond within 5 seconds of the initial ping, which Monday uses to validate the endpoint before completing registration. Return an empty HTTP 200 response immediately on any POST to the webhook path before processing the payload, moving all business logic to an async background job to avoid exceeding the response window. Monday.com sends a webhook event for every column update on every board item, including changes to columns you do not care about, flooding your middleware with irrelevant events. Add a filter in your handler that checks event.columnId against an allow-list of column IDs you care about, such as the Status or Person column IDs, and skip processing for all other column IDs. GraphQL errors are returned with HTTP 200 status codes rather than 4xx codes, meaning your middleware may silently fail to fetch item data. Always check the errors array in the Monday.com API response body alongside the data field, and log any errors with the full GraphQL query for debugging when item lookups return null data.
How to Get More from This Integration
Build deadline SMS reminders by running a scheduled job every morning that queries Monday.com items with due dates matching tomorrow using a GraphQL query with a filter on the date column, then sends a Twilio SMS to each item's assignee so no deadline is missed without a direct notification. Use Monday.com column formulas to store a normalized E.164 phone number in a dedicated Phone column on each item, making your middleware lookup reliable regardless of how team members format phone numbers elsewhere on the board. Extend the integration to outbound voice by having your middleware initiate a Twilio call via POST https://api.twilio.com/2010-04-01/Accounts/{AccountSid}/Calls.json when a board item's priority column is set to Critical, delivering a voice alert to the on-call person who may miss an SMS. Create a two-way loop by building an inbound Twilio SMS handler that accepts reply commands like DONE or SNOOZE and updates the corresponding Monday.com item's status column via a GraphQL mutation change_column_value, letting team members acknowledge alerts from their phone without opening Monday.
Conclusion
Monday.com and Twilio together turn your project board into a live notification system that reaches your team on their phones the instant something changes without anyone needing to check the board. Contact Telphi Consulting to build and configure this integration for your Monday.com workspace.
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