# Send monthly rent and sales market updates to Slack: n8n workflow

> Started by a clock, and works across Slack and Supabase. 20 steps, 3 branches: a working afternoon to understand properly.

Source: https://millionrounds.com/workflow/send-monthly-rent-and-sales-market-updates-to-slack (Millionrounds; every figure on the page links to its filing or article)

[Automation library](https://millionrounds.com/workflows) · [CRM](https://millionrounds.com/workflows?category=CRM#library)

# Send monthly rent and sales market updates to Slack

Started by a clock, and works across Slack and Supabase. 20 steps, 3 branches: a working afternoon to understand properly.

Medium

[Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Fsend-monthly-rent-and-sales-market-updates-to-slack)

**20 steps** Medium: a working afternoon

**3** Branches: places the flow splits

**0** Loops or waits

**2** Services it connects to

## The flow

Starts it 1 Logic 10 Service 9

The steps in the order they run, from what starts it.

- 1 **Monthly Trigger** Schedule trigger *Starts it*
- 2 **Set Zipcode Parameter** Set *Logic*
- 3 **Fetch Rentals from Supabase** Supabase *Service*
- 4 **Fetch Sales from Supabase** Supabase *Service*
- 5 **Merge Supabase Results** Merge *Logic*
- 6 **Aggregate Market Data** Aggregate *Logic*
- 7 **If Data Exists** If *Logic*
- 8 **Analyze Empty Data Response** Code *Logic*
- 9 **Fetch Market Data** Http Request *Service*
- 10 **If Data Missing** If *Logic*
- 11 **Upsert Rentals to Supabase** Http Request *Service*
- 12 **Upsert Sales to Supabase** Http Request *Service*
- 13 **Notify Missing Data to Slack** Slack *Service*
- 14 **Notify Admin of Error** Slack *Service*
- 15 **Merge Market Updates** Merge *Logic*
- 16 **Aggregate Upsert Status** Aggregate *Logic*
- 17 **Check Upsert Success** Code *Logic*
- 18 **If Upsert Successful** If *Logic*
- 19 **Post Success to Slack** Slack *Service*
- 20 **Post Error to Slack** Slack *Service*

## How it's built

- **Starts on:** A clock
- **Steps:** 20, with 3 branches
- **Size:** Medium: a working afternoon
- **Connects to:** Slack, Supabase
- **Model:** None. This is plumbing, not judgement

## Questions

What does it need to run?

An n8n account, plus your own Slack and Supabase accounts. You connect your own accounts after importing it; none are included.

What starts it?

It starts on a clock.

Does it use AI?

No. Every step is fixed logic or a call to a service, so it does the same thing every time.

How long does it take to set up?

Plan an afternoon. 20 steps is enough that you should read each one before running it.

How do I import it?

Copy the workflow, open a new workflow in n8n and paste. The steps appear on the canvas, ready for your own accounts.

**Before you run it**

Nothing here has been tested by us. It is somebody's working automation, read and described from its own steps. Treat the connections it wants as a list of accounts it will touch, and read the 20 steps before you point it at anything that matters.

## Run it in n8n

- **Create your n8n account** Free to start. n8n is where the workflow runs. [Create an n8n account ↗](https://millionrounds.com/n8n)
- **Download the workflow** Free with a Millionrounds account. [Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Fsend-monthly-rent-and-sales-market-updates-to-slack)
- **Paste it into n8n** Open a new workflow in n8n and paste. Then connect your own accounts.

Stored with the author's traces removed: canvas notes, instance identifiers, saved credential names and any live document they had left behind.

## Connects to

Each opens the other workflows that use it.

[Slack](https://millionrounds.com/workflows?service=Slack#library)[Supabase](https://millionrounds.com/workflows?service=Supabase#library)

## Workflows like it

Also crm, with the same services where possible, closest in size first.

- [**Better Oauth2.0 workflow for Pipedrive CRM with Supabase** 20 steps · Supabase](https://millionrounds.com/workflow/better-oauth2-0-workflow-for-pipedrive-crm-with-supabase)
- [**Reach out to companies that recently secured funding** 20 steps · HubSpot, Slack](https://millionrounds.com/workflow/reach-out-to-companies-that-recently-secured-funding)
- [**GPT-4o: Twilio integration with OpenAI and Airtable** 20 steps · calls a model · Airtable, Email](https://millionrounds.com/workflow/gpt-4o-twilio-integration-with-openai-and-airtable)
- [**Block noindex SEO regressions in deploy pipelines with Slack** 19 steps · Slack](https://millionrounds.com/workflow/block-noindex-seo-regressions-in-deploy-pipelines-with-slack)
- [**AI-powered document workflow automation with OpenAI** 21 steps · calls a model · Email, Google Drive](https://millionrounds.com/workflow/ai-powered-document-workflow-automation-with-openai)
- [**Explain pasted code and follow-up questions with OpenAI** 19 steps · calls a model · Discord, Slack](https://millionrounds.com/workflow/explain-pasted-code-and-follow-up-questions-with-openai)