Per-pair page

Connect Slack to Invoice Ninja in two minutes.

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

Connect Slack and Invoice Ninja See reverse direction

Trigger app

Slack as the trigger

Workflows fire when something happens in Slack.

See all 13 triggers →

Action app

Invoice Ninja as the action

Workflows do something in Invoice Ninja, instantly.

Both directions

Pick the way that fits your stack.

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

Slack → Invoice Ninja

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

13 Slack triggers wired to 2 Invoice Ninja actions. Most-used pairing: App Home Opened → Create Invoice Ninja Invoice.

Invoice Ninja → Slack

Or fire it the other way around.

4 Invoice Ninja triggers wired to 45 Slack actions downstream.

See Invoice Ninja → Slack →

Popular pairings

Common Slack → Invoice Ninja workflows.

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

Showing 6 of 26 combinations

When app home opened in Slack, create invoice ninja invoice in Invoice Ninja.

Fires when a user opens your Slack app's Home tab or DM. Useful for refreshing the Home view, lazy-loading user-specific data, or tracking app engagement.

When app home opened in Slack, list invoice ninja invoices in Invoice Ninja.

Fires when a user opens your Slack app's Home tab or DM. Useful for refreshing the Home view, lazy-loading user-specific data, or tracking app engagement.

When app mentioned in Slack, create invoice ninja invoice in Invoice Ninja.

Fires when your Slack app is mentioned in a message. The standard hook for chatbots that answer when summoned with @your-app.

When app mentioned in Slack, list invoice ninja invoices in Invoice Ninja.

Fires when your Slack app is mentioned in a message. The standard hook for chatbots that answer when summoned with @your-app.

When new channel in Slack, create invoice ninja invoice in Invoice Ninja.

Fires when a new Slack channel is created in the workspace. Useful for auto-adding the bot, welcome messages, or governance audit logs.

When new channel in Slack, list invoice ninja invoices in Invoice Ninja.

Fires when a new Slack channel is created in the workspace. Useful for auto-adding the bot, welcome messages, or governance audit logs.

How it works

Connect Slack and Invoice Ninja in five steps.

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

1
Connect
Authorize Slack and Invoice Ninja
Open Tiny Command, authorize Slack and Invoice Ninja once each. Both connections are available to every workflow on your account.
2
Trigger
Pick a Slack trigger
Drop the Slack → App Home Opened trigger onto the canvas. Tiny Command auto-registers the webhook.
POST /v1/webhooks/slack.trigger-app-home-opened
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
Action
Add the Invoice Ninja action
Drop the Invoice Ninja → Create Invoice Ninja Invoice action below it. Map fields from the Slack payload into the Invoice Ninja inputs.
invoice-ninja.create-invoice
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 Slack + Invoice Ninja.

How long does it take to connect Slack and Invoice Ninja on Tiny Command?

Under two minutes. Authorize Slack and Invoice Ninja once each, drop the Slack trigger and Invoice Ninja action onto a workflow canvas, map a couple of fields, and publish. No code, no glue.

Is the Slack ↔ Invoice Ninja integration real-time?

Yes. Both Slack and Invoice Ninja 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 Slack and Invoice Ninja?

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 Invoice Ninja.

What Slack events can trigger a Invoice Ninja workflow?

Any of the 13 Slack triggers, including "App Home Opened". Each fires in real time when the matching event happens in Slack.

Do I need a paid plan to use Slack with Invoice Ninja?

No. There's a free tier that covers most Slack+Invoice Ninja use cases without a credit card. Paid plans unlock higher run volumes and team features when you outgrow it.

What if I want Invoice Ninja → Slack instead?

Build it the same way, in reverse. There's a dedicated /integrations/invoice-ninja/with/slack page with the reverse-direction triggers and actions.

Other apps that pair well with Slack.

Slack + Gmail

Slack + Google Sheets

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