Onfleet runs the delivery day. FlowMattic posts what dispatchers and support need to know to Slack: completed drops, failed attempts, tasks running late and recipients who stopped SMS updates. For delivery, courier and local commerce teams who dispatch drivers in Onfleet and coordinate in Slack.
19 triggers 14 actions 7 example workflows 2 ready-made templates Unlimited runs
When this happens in Onfleet19 triggers
Do this in Slack14 actions
1. TriggerTask Completed2. ActionSend Channel MessageWhen Onfleet fires Task Completed, FlowMattic runs Send Channel Message in Slack with the data from that event.
You build this in the FlowMattic workflow builder on your own site. See the setup steps
Each one uses only triggers and actions the two integrations ship today, plus FlowMattic's own tools. Where the library has a ready-made template, import it instead of building from scratch.
Ready-made templateThe operations channel gets the recipient, address and driver as each task completes, so the team can answer a customer's question without opening the Onfleet dashboard.
Task CompletedSend Channel Message
View the template Task Failed posts the recipient, address and the driver's failure notes to the support channel, so someone can reschedule with the customer before they call in.
Task FailedSend Channel Message
Task Delay Time fires once a task passes the delay you set. A direct message to the dispatcher on shift means late drops are handled before the customer complains.
Task Delay TimeSend Direct Message
A Router reads the team on the failed task, so each depot sees only its own failed attempts in its own channel and acts on them.
Task FailedRouterSend Channel Message
SMS Recipient Opt-Out posts the recipient to the support channel, so the team knows to reach that customer another way about their next delivery.
SMS Recipient Opt-OutSend Private Channel Message
Driver Status Changed fires when a driver goes on or off duty. Set Channel Topic writes the latest change, so dispatchers see at a glance who just started or ended a shift.
Driver Status ChangedSet Channel Topic
Auto-Dispatch Job Completed tells the dispatch channel that routes are ready, so drivers and dispatchers know when to start loading.
Auto-Dispatch Job CompletedSend Channel Message
At the end, every Onfleet task that completes posts the recipient, address and driver in your operations channel.
In FlowMattic, open Connects and add the Slack workspace your operations team uses.
Add an Onfleet connection with an API key from an admin account.
Create a workflow with the Onfleet Task Completed trigger and complete a test task so FlowMattic captures its fields.
Add Slack Send Channel Message, choose the channel, map the task fields into the text, test it and switch the workflow on.
1. Trigger in Onfleet
Task Completed
2. Action in Slack
Send Channel Message
Fields mapped from the earlier steps (a typical setup)
| From Onfleet | To Slack |
|---|---|
| Recipient name | Message: recipient |
| Destination address | Message: address |
| Worker name | Message: driver |
| Completion time | Message: delivered |
| Tracking URL | Message: tracking |
A trigger starts a workflow. An action is something FlowMattic does in the app as a step.
Onfleet and Slack connect through FlowMattic on your own site, with no separate automation account in the middle and no charge per run.
Failed and late tasks land with support and dispatch as they happen, with the details needed to fix them.
Runs are unlimited on every FlowMattic plan, so a peak week of deliveries costs the same as a slow one.
Names, addresses and phone numbers pass through your own WordPress server on the way to Slack, not through an outside automation account.
Connect Onfleet and Slack in FlowMattic, create a workflow with an Onfleet trigger such as Task Completed or Task Failed, then add Slack Send Channel Message with the task fields mapped.
Yes. Use Task Delay Time and Send Direct Message to the dispatcher. Use Find User by Email first if the dispatcher changes by shift.
Yes. Add a Router on the task's team after the trigger, with a Slack step and channel for each team.
Only if they use your Slack workspace. Most teams keep driver messages in the Onfleet app and use Slack for dispatchers, support and managers.
On a busy day they can. Use a channel just for completions, or a Filter that keeps only certain merchants, teams or priority tasks.
Did not find your answer? You can browse the help center or ask us directly.
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Reviewed 27 Oct 2026. The example workflows are written with AI from the real triggers and actions of both integrations and checked against them. Onfleet integration 1.0.0, Slack integration 1.0.
