开发

Notify Workflow Errors by Mattermost and SMS

When a workflow fails, post its identity and failed node to Mattermost, then send an SMS.

Post a workflow failure to Mattermost and send an SMS using Twilio.

Setup

In Open Flow, select the published source workflows in Receive a workflow failure, then publish and enable this error workflow. Connect Mattermost and Twilio, and set the channel ID and both E.164 phone numbers in Prepare error alerts. The Twilio sender must be able to send to the destination.

In n8n, connect Mattermost and Twilio, set the destination channel and phone numbers in their nodes, and assign this workflow as the error workflow in each source workflow’s settings. Activate it before relying on the alerts.

Behavior

On an automatic run failure from a configured workflow, the workflow posts the workflow name and ID plus the failed node identifier in Mattermost. It then sends an SMS with the workflow name and ID. Open Flow reports a node ID when available; n8n uses the last executed node name. If the failure does not identify a node, the alert says it is unavailable.

Mattermost errors stop the SMS step. A failed or uncertain message may already have been delivered; inspect the channel and phone before retrying. Avoid binding the error workflow to itself. Restrict access to workflow names and execution history.

Inspiration & credits

Changes to the source

Configure the previously empty Mattermost and Twilio destinations. Open Flow validates phone numbers before posting.
Use the respective platform’s error trigger and explicitly bind source workflows. Open Flow’s error event provides a failed node ID rather than n8n’s last executed node name.

Adapted from Send workflow error notifications to Mattermost and Twilio in Zie619/n8n-workflows. The source export does not identify a separate template author or license.

The collection’s MIT notice is pinned at a later revision. This is the collection notice at that revision; it does not establish a separate original template author’s license. Our changes are listed above; see repository licensing.

MIT License

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