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Connect Invoice Ninja to Slack in two minutes.

Real-time triggers from Invoice Ninja, ready-made actions in Slack. Filter, transform, and route without writing a line of code.

Trigger app
Invoice Ninja as the trigger

Workflows fire when something happens in Invoice Ninja.

Action app
Slack as the action

Workflows do something in Slack, instantly.

See all 45 actions →
Both directions

Pick the way that fits your stack.

Pair pages are mirrored. Each direction gets its own dedicated page.

Invoice NinjaSlack

When something happens in Invoice Ninja, do it in Slack.

4 Invoice Ninja triggers wired to 45 Slack actions. Most-used pairing: Invoice Ninja Client CreatedRaw API Request.

SlackInvoice Ninja

Or fire it the other way around.

13 Slack triggers wired to 2 Invoice Ninja actions downstream.

See SlackInvoice Ninja
Popular pairings

Common Invoice Ninja → Slack workflows.

Pick a pairing to set it up in two minutes. Each one is a fully editable recipe.

Showing 9 of 180 combinations
When invoice ninja client created in Invoice Ninja, raw api request in Slack.

Fires when a new client is added to Invoice Ninja. For "new client → push to CRM, create welcome project" cross-system onboarding workflows.

When invoice ninja client created in Invoice Ninja, add reaction in Slack.

Fires when a new client is added to Invoice Ninja. For "new client → push to CRM, create welcome project" cross-system onboarding workflows.

When invoice ninja client created in Invoice Ninja, archive channel in Slack.

Fires when a new client is added to Invoice Ninja. For "new client → push to CRM, create welcome project" cross-system onboarding workflows.

When invoice ninja client created in Invoice Ninja, cancel scheduled message in Slack.

Fires when a new client is added to Invoice Ninja. For "new client → push to CRM, create welcome project" cross-system onboarding workflows.

When invoice ninja invoice created in Invoice Ninja, raw api request in Slack.

Fires when an invoice is created — draft or sent. Useful for "log all invoices to revenue forecast" or "push to accounting integration" sync workflows.

When invoice ninja invoice created in Invoice Ninja, add reaction in Slack.

Fires when an invoice is created — draft or sent. Useful for "log all invoices to revenue forecast" or "push to accounting integration" sync workflows.

When invoice ninja invoice created in Invoice Ninja, archive channel in Slack.

Fires when an invoice is created — draft or sent. Useful for "log all invoices to revenue forecast" or "push to accounting integration" sync workflows.

When invoice ninja invoice created in Invoice Ninja, cancel scheduled message in Slack.

Fires when an invoice is created — draft or sent. Useful for "log all invoices to revenue forecast" or "push to accounting integration" sync workflows.

When invoice ninja payment received in Invoice Ninja, raw api request in Slack.

Fires when a payment is recorded against an invoice. Payload includes amount, method, the cleared invoices. The revenue-event hook for accounting workflows.

How it works

Connect Invoice Ninja and Slack in five steps.

No code, no glue, no half-day setup. Each step is one click.

  1. 1
    Connect
    Authorize Invoice Ninja and Slack

    Open Tiny Command, authorize Invoice Ninja and Slack once each. Both connections are available to every workflow on your account.

  2. 2
    Trigger
    Pick a Invoice Ninja trigger

    Drop the Invoice Ninja → Invoice Ninja Client Created trigger onto the canvas. Tiny Command auto-registers the webhook.

    POST /v1/webhooks/invoice-ninja.trigger-client-created
  3. 3
    Transform
    Add a filter or AI step

    Optionally add a Filter node ("subject contains URGENT") or an AI step ("classify intent") between trigger and action.

  4. 4
    Action
    Add the Slack action

    Drop the Slack → Raw API Request action below it. Map fields from the Invoice Ninja payload into the Slack inputs.

    slack.api-request
  5. 5
    Publish
    Publish and forget

    Hit Publish. Tiny Command runs it in production from second one. Watch the run-log fill up.

FAQ

Questions about Invoice Ninja + Slack.

How long does it take to connect Invoice Ninja and Slack on Tiny Command?
Under two minutes. Authorize Invoice Ninja and Slack once each, drop the Invoice Ninja trigger and Slack action onto a workflow canvas, map a couple of fields, and publish. No code, no glue.
Is the Invoice Ninja ↔ Slack integration real-time?
Yes. Both Invoice Ninja and Slack expose webhooks, so events from one fire workflows in the other within seconds rather than on a polling interval.
Can I filter or transform data between Invoice Ninja and Slack?
Yes. Add a Filter node to only pass through matching events, a Switch node to branch by value, or an AI / Code node to transform payloads before they hit Slack.
What Invoice Ninja events can trigger a Slack workflow?
Any of the 4 Invoice Ninja triggers, including "Invoice Ninja Client Created". Each fires in real time when the matching event happens in Invoice Ninja.
Do I need a paid plan to use Invoice Ninja with Slack?
No. There's a free tier that covers most Invoice Ninja+Slack use cases without a credit card. Paid plans unlock higher run volumes and team features when you outgrow it.
What if I want Slack → Invoice Ninja instead?
Build it the same way, in reverse. There's a dedicated /integrations/slack/with/invoice-ninja page with the reverse-direction triggers and actions.
Related

Other apps that pair well with Invoice Ninja.


Wire Invoice Ninja to Slack in 2 minutes.

Free tier available. No credit card. No onboarding call.