99Inbound collects form entries from static sites and landing pages. FlowMattic passes each one to Slack, to the channel for that site or straight to the person who should reply, with a reminder if nobody follows up. For makers and agencies who live in Slack and do not want to watch a form inbox.
1 trigger 14 actions 5 example workflows 2 ready-made templates Unlimited runs
When this happens in 99Inbound1 trigger
Do this in Slack14 actions
1. TriggerNew Form Submission2. ActionSend Channel MessageWhen 99Inbound fires New Form Submission, 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 templateName, email and message appear in the team channel, so whoever is free can pick up the enquiry and reply in a thread to say they have it.
New Form SubmissionSend Channel Message
View the template A Filter keeps entries from the pricing page form, and Send Direct Message puts them in front of the person who answers quotes.
New Form SubmissionFilterSend Direct Message
Agencies point several static sites at 99Inbound. A Router reads the form name and posts to that client's channel, so entries never cross between clients.
New Form SubmissionRouterSend Channel Message
The submission goes to the channel and Add Reminder nudges the owner the next morning, so a busy afternoon does not leave the enquiry unanswered.
New Form SubmissionSend Channel MessageAdd Reminder
An AI Agent turns a long enquiry into one line with a category, such as quote or support, so the channel stays readable and the full text sits in a thread.
New Form SubmissionAI AgentSend Channel Message
At the end, each 99Inbound submission posts to the Slack channel you choose.
Under Connects in FlowMattic, add a Slack connection for the workspace your team uses.
Create a workflow with 99Inbound and New Form Submission, and follow the trigger's instructions to send the form's entries to the workflow.
Submit the live form once so FlowMattic captures the fields your form sends.
Add Slack Send Channel Message, pick the channel, build the text from the name, email and message, test it and switch the workflow on.
1. Trigger in 99Inbound
New Form Submission
2. Action in Slack
Send Channel Message
Fields mapped from the earlier steps (a typical setup)
| From 99Inbound | To Slack |
|---|---|
| name | Message: who |
| Message: reply to | |
| message | Message: body |
| Form name | Message: source |
A trigger starts a workflow. An action is something FlowMattic does in the app as a step.
99Inbound and Slack connect through FlowMattic on your own site, with no separate automation account in the middle and no charge per run.
Entries from every static site land in Slack, so the team sees and claims them without another inbox to check.
Filters and Routers send pricing questions to sales and support questions to support, instead of pinging the whole team.
FlowMattic runs on your WordPress site, so a busy launch week costs the same as a quiet one.
Create a FlowMattic workflow with the 99Inbound New Form Submission trigger, follow its instructions to point the form at the workflow, then add Slack Send Channel Message and map the form fields into the text.
Yes. Add a Router that checks the form name and give each path its own Send Channel Message step with a different channel.
Yes. Use Send Direct Message to reach a teammate privately, and Find User by Email first if you want to look them up by their email address.
Yes. Add a Google Sheets step before or after the Slack message in the same workflow, so the entry is logged and the team is told.
Yes. Put a Filter right after the trigger that stops entries with an empty email, a filled honeypot field or known spam words.
Did not find your answer? You can browse the help center or ask us directly.
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Slack and Notion17 shared templatesInstall FlowMattic, connect both accounts and import a template. Every run stays on your own server.
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. 99Inbound integration 1.0.0, Slack integration 1.0.
