Sentry.io catches exceptions and crashes in your apps. FlowMattic posts the Sentry.io events your team should see to Slack: new issues for the engineering channel, production errors for on-call, assignments to the assignee and resolutions for support. For product teams that triage bugs in Slack.
3 triggers14 actions6 example workflows2 ready-made templatesUnlimited runs
Try a pairing
When this happens in Sentry.io3 triggers
Do this in Slack14 actions
1. TriggerIssue
2. ActionSend Channel Message
When Sentry.io fires Issue, 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
Sentry.io and Slack workflows you can build
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 template
Alert engineering for every new Sentry.io issue
A Filter passes only newly created issues, so the engineering channel sees each fresh bug once with its title, project and link, and resolved or ignored updates stay out.
A Router reads the environment on each error. Production goes to on-call, staging goes to the developers' channel, so on-call only wakes up for customers' problems.
Error→Router→Send Channel Message
DM the developer an issue is assigned to
When an issue is assigned, Find User by Email finds the assignee in Slack and a direct message gives them the issue and link, so ownership is clear.
Issue→Filter→Find User by Email→Send Direct Message
Tell support when a customer-facing issue is resolved
Resolved issues post to the support channel, so agents can tell the customers who reported the bug that a fix is out.
Issue→Filter→Send Channel Message
Open a channel for a high-impact bug
For issues in a critical project, Create Channel names a channel after the issue and Set Channel Topic adds the Sentry.io link, so the investigation has its own room.
Issue→Filter→Create Channel→Set Channel Topic
Post Sentry.io comments to the team channel
Comments on issues often hold the root cause. Posting new comments to the team channel shares findings with people who do not watch Sentry.io.
Alert engineering for every new Sentry.io issueTemplate
1. Trigger in Sentry.io
Issue
2. FlowMattic tool
Filter
3. Action in Slack
Send Channel Message
Fields mapped from the earlier steps (a typical setup)
From Sentry.io
To Slack
Issue title
Message: what broke
Project
Message: project
Level
Message: severity
Issue URL
Message: link
Built on the FlowMattic canvas. Test each step with real data, then switch the workflow on.
Triggers and actions in this pair
A trigger starts a workflow. An action is something FlowMattic does in the app as a step.
Good to know
The Issue trigger fires when an issue is created, resolved, assigned or ignored. Without a Filter on the action, one bug can post four times.
Error fires for every new error event, which can be many for one bug. Use Issue for alerts and keep Error for low-volume projects or a Filter on environment.
Comment fires on created, edited and deleted comments, so filter to created if you only want new findings posted.
Send Channel MessagePost or Schedule a new message to a specific #channel
Add ReminderAdds a reminder for the user
Create ChannelCreates a new channel
List All ChannelsRetrieve list of all channels
Set Channel TopicSets the topic on a selected channel
Set StatusSets your Slack status to the given text and emoji
Invite User To ChannelInvite an existing User to an existing Channel. You must be a member of the channel to invite someone to it
Find User by EmailFinds a user by matching against their email instead of their username
Find User by IDFinds a user by their ID.
Send Direct MessageSend a direct message to a user or yourself from the Slackbot. Can also schedule a message for later
Send Private Channel MessagePost a new message to a private channel you choose. Can also schedule a message for later
Update ProfileUpdate basic profile fields such as name or title
Find MessageFinds a Slack message using the Slack Search feature
Upload FileUpload file to your slack workplace
Why run this pair with FlowMattic
Sentry.io and Slack connect through FlowMattic on your own site, with no separate automation account in the middle and no charge per run.
Each bug reaches its owner
New issues reach the team, assignments reach the assignee and resolutions reach support, so every update has a reader.
Noise is a choice
Filters and Routers on action and environment decide what posts, so the channel holds the bugs people should act on.
Error spikes cost nothing extra
FlowMattic runs on your own WordPress site with unlimited runs, so a bad deploy that fires many events adds no per-task fee.
Common questions
How do I send Sentry.io alerts to Slack with FlowMattic?
Create a workflow with the Sentry.io Issue trigger, add a Filter for the created action, then Slack Send Channel Message with the issue title, project and link. Test with one exception and switch it on.
Can I alert only on production errors?
Yes. Add a Filter after the Error trigger that continues only when the environment is production, or a Router that sends each environment to its own channel.
Can a new error also go to a task tracker?
Yes. Add a step for your task app after the Slack message, for example a ClickUp task, so the bug is tracked as well as announced.
Can on-call be messaged directly?
Yes. Use Find User by Email with the on-call engineer's email, or a Lookup Table that maps the project to a person, then Send Direct Message.
What if my WordPress site is the app that is failing?
FlowMattic runs on your WordPress site, so if that site is down the workflow cannot run. Keep a direct Sentry.io alert for the site that hosts FlowMattic.
30-day money-back guarantee Unlimited workflows and runs Self-hosted
Reviewed 27 Oct 2026. The example workflows are written with AI from the real triggers and actions of both integrations and checked against them. Sentry.io integration 1.0.0, Slack integration 1.0.