Greenhouse holds your jobs, candidates and offers. FlowMattic posts the hiring moments to Slack: a new job opened, an application in, an offer created or approved, a candidate hired. Recruiters and hiring managers stay in step without checking the ATS, and the whole company can welcome new starters as soon as they sign.
7 triggers 14 actions 7 example workflows 2 ready-made templates Unlimited runs
When this happens in Greenhouse7 triggers
Do this in Slack14 actions
1. TriggerNew Job Created2. ActionSend Channel MessageWhen Greenhouse fires New Job Created, 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 templateA new requisition is work for the recruiting team. Posting it to their channel lets someone pick it up, write the job post and start sourcing the same week.
New Job CreatedSend Channel Message
View the template A Lookup Table maps each job to its hiring manager's email. The manager gets a direct message for each new application to that job and can review it promptly.
New Application CreatedLookup TableFind User by EmailSend Direct Message
When an offer is created, the private offers channel hears about it with the job and candidate, so finance and the department head know it is waiting for their approval.
New Offer CreatedSend Private Channel Message
Offer Approved means the recruiter can call the candidate. A direct message saves them checking the offer status between interviews.
Offer ApprovedFind User by EmailSend Direct Message
When a candidate is hired, a general channel post introduces the new starter's name, role and team, so colleagues can welcome them before day one.
Candidate HiredSend Channel Message
A hire creates work for IT. Slack sets a reminder for the IT lead a week before the start date to order the laptop and set up accounts.
Candidate HiredDate/Time FormatterAdd Reminder
When a job post goes live, the company channel gets the title and link, so employees can share it and suggest people they know.
New Job Post CreatedSend Channel Message
At the end, every job created in Greenhouse is posted to your recruiting channel with its title, department and office.
Add Slack under Connects in FlowMattic with an account in the recruiting channel.
Create a workflow, choose Greenhouse and New Job Created, and follow the instructions shown to send Greenhouse events to the workflow.
Open a draft job in Greenhouse so FlowMattic captures the job fields.
Add Send Channel Message, choose the channel and map the job name, department and office. Test the step, then switch it on.
1. Trigger in Greenhouse
New Job Created
2. Action in Slack
Send Channel Message
Fields mapped from the earlier steps (a typical setup)
| From Greenhouse | To Slack |
|---|---|
| Job name | Message: role |
| Department | Message: team |
| Office | Message: location |
| Requisition ID | Message: req |
A trigger starts a workflow. An action is something FlowMattic does in the app as a step.
Greenhouse and Slack connect through FlowMattic on your own site, with no separate automation account in the middle and no charge per run.
New applications and offers reach the right manager in Slack, so reviews and approvals do not stall in the ATS.
Hire announcements and IT reminders mean colleagues and equipment are ready before the first day.
FlowMattic runs on your own WordPress site with unlimited runs, so hiring data is not copied into another automation service.
Connect Slack in FlowMattic, start a workflow with a Greenhouse trigger such as New Job Created or Candidate Hired, and add Send Channel Message. Map the fields, test with a real event and switch the workflow on.
Yes. Use a Lookup Table that maps job names to manager emails, then Find User by Email and Send Direct Message, so each manager hears about applications to their jobs only.
Yes. Use Send Private Channel Message for New Offer Created and Offer Approved, so salary and candidate details are seen only by the people approving offers.
Yes. New Prospect Created is a separate trigger for prospect applications. Send those to a sourcing channel so recruiters can follow up on people they found.
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. Greenhouse integration 1.0.0, Slack integration 1.0.
