When this happens...
WaveNew Invoice
Then do this...
SlackSend Channel Message

Staying on top of new invoices as you receive them can be a tall order. Keeping things on top of mind to know when they have come in can be difficult, but is paramount when it comes to cash flow. With a little help from Zapier, you can easily be alerted in a messaging app like Slack any time a new invoice comes in. Never worry about thinking "what's the status of that?" ever again!

How It Works

  1. You receive a new invoice in Wave
  2. Zapier sends a message to Slack

What You Need

  • Wave account
  • Slack account

Why Zapier?


Get started for free—14 day trial of premium features and apps.


No coding required—automate any of 1,000+ apps in minutes.


Enterprise-level security—connect mission-critical apps.

It's easy to connect Wave + Slack and requires absolutely zero coding experience—the only limit is your own imagination.

When this happens...
then do this!
New Invoice

Triggers when a new invoice is created.

Record Sale

Records an Income transaction with optional Sales Tax and optional Payment Processing Fee.

New Customer

Triggers when a new customer is added to a business you choose.

Create Invoice

Creates a new invoice.

New Starred Message

Triggers when you star a message.

Create Customer

Creates a customer in a business that you choose.

New Message Posted to Channel

Triggers when a new message is posted to a specific #channel you choose.

Send Direct Message

Send a direct message to a user or yourself from the Slackbot.

New Public Message Posted Anywhere

Triggers when a new message is posted to any public channel.

Send Channel Message

Post a new message to a specific #channel you choose.

Use our free platform to build a single Zapier integration and instantly connect your app with 1,400+ others.

Become a Zapier Integration Partner

Wave's invoicing and accounting software is completely free, and has no usage limits or restrictions. Optional Payment Processing and Payroll services are fully integrated to create a seamless platform for your business finances.

Learn More

Slack is a platform for team communication: everything in one place, instantly searchable, available wherever you go. Offering instant messaging, document sharing and knowledge search for modern teams.

See Slack Integrations