# Classify supplier tiers with Google Sheets and Groq: n8n workflow

> Started by a clock, and works across Gmail, Google Sheets and Slack. It hands the judgement calls to Groq.

Source: https://millionrounds.com/workflow/classify-supplier-tiers-with-google-sheets-and-groq (Millionrounds; every figure on the page links to its filing or article)

[Automation library](https://millionrounds.com/workflows) · [Alerts and monitoring](https://millionrounds.com/workflows?category=Alerts+and+monitoring#library)

# Classify supplier tiers with Google Sheets and Groq

Started by a clock, and works across Gmail, Google Sheets and Slack. It hands the judgement calls to Groq. 17 steps, 3 branches: a working afternoon to understand properly.

Medium Calls a model: Groq

[Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Fclassify-supplier-tiers-with-google-sheets-and-groq)

**17 steps** Medium: a working afternoon

**3** Branches: places the flow splits

**0** Loops or waits

**3** Services it connects to

## The flow

Starts it 1 Model 2 Logic 6 Service 8

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

- 1 **Daily Trigger** Schedule trigger *Starts it*
- 2 **LLM Model (Groq)** Lm Chat Groq *Model*
- 3 **Fetch Supplier Data** Google Sheets *Service*
- 4 **Generate Tier Justification (AI)** Agent *Model*
- 5 **Filter Unprocessed Suppliers** If *Logic*
- 6 **Extract Tier Reason** Set *Logic*
- 7 **Normalize Supplier Data** Set *Logic*
- 8 **Check Tier Change** If *Logic*
- 9 **Validate Supplier Data** If *Logic*
- 10 **Update Supplier Record (Tier Changed)** Google Sheets *Service*
- 11 **Mark Supplier as Reviewed (No Change)** Google Sheets *Service*
- 12 **Calculate Supplier Score & Tier** Code *Logic*
- 13 **Append row in sheet** Google Sheets *Service*
- 14 **Send No-Change Summary Email** Gmail *Service*
- 15 **Send Tier Update Email** Gmail *Service*
- 16 **Send No-Change Slack Notification** Slack *Service*
- 17 **Send Tier Update Slack Notification** Slack *Service*

## How it's built

- **Starts on:** A clock
- **Steps:** 17, with 3 branches
- **Size:** Medium: a working afternoon
- **Connects to:** Gmail, Google Sheets, Slack
- **Model:** Groq

## Questions

What does it need to run?

An n8n account, plus your own Gmail, Google Sheets and Slack accounts, and a key for Groq. You connect your own accounts after importing it; none are included.

What starts it?

It starts on a clock.

Does it use AI?

Yes. It calls Groq. Model calls are billed by the provider, not by n8n.

How long does it take to set up?

Plan an afternoon. 17 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 17 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%2Fclassify-supplier-tiers-with-google-sheets-and-groq)
- **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.

[Gmail](https://millionrounds.com/workflows?service=Gmail#library)[Google Sheets](https://millionrounds.com/workflows?service=Google+Sheets#library)[Slack](https://millionrounds.com/workflows?service=Slack#library)

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