# Monitor LINE activity and Gemini sentiment with Google Sheets: n8n workflow

> Started by another system calling it, and works across Google Sheets. It hands the judgement calls to Gemini.

Source: https://millionrounds.com/workflow/monitor-line-activity-and-gemini-sentiment-with-google-sheet (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)

# Monitor LINE activity and Gemini sentiment with Google Sheets

Started by another system calling it, and works across Google Sheets. It hands the judgement calls to Gemini. 19 steps, 3 branches, 1 loop or waits: a working afternoon to understand properly.

Medium Calls a model: Gemini

[Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Fmonitor-line-activity-and-gemini-sentiment-with-google-sheet)

**19 steps** Medium: a working afternoon

**3** Branches: places the flow splits

**1** Loop or waits

**1** Service it connects to

## The flow

Starts it 2 Model 1 Logic 10 Service 6

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

- 1 **Daily 11 AM** Schedule trigger *Starts it*
- 2 **LINE Webhook** Webhook *Starts it*
- 3 **Config for Daily** Set *Logic*
- 4 **Config** Set *Logic*
- 5 **Read Logs** Google Sheets *Service*
- 6 **Format Message** Set *Logic*
- 7 **Check Activity** Code *Logic*
- 8 **Gemini: Analyze** Google Gemini *Model*
- 9 **If Inactive** If *Logic*
- 10 **Parse JSON** Code *Logic*
- 11 **Remind Parent** Line *Service*
- 12 **Log to Sheets** Google Sheets *Service*
- 13 **Wait 3 Hours** Wait *Logic*
- 14 **Is Risk?** If *Logic*
- 15 **Read Logs Again** Google Sheets *Service*
- 16 **Alert Child** Line *Service*
- 17 **Check Activity 2** Code *Logic*
- 18 **If Still Inactive** If *Logic*
- 19 **Emergency Alert** Line *Service*

## How it's built

- **Starts on:** Another system calling it
- **Steps:** 19, with 3 branches, 1 loop or waits
- **Size:** Medium: a working afternoon
- **Connects to:** Google Sheets
- **Model:** Gemini

## Questions

What does it need to run?

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

What starts it?

It starts on another system calling it.

Does it use AI?

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

How long does it take to set up?

Plan an afternoon. 19 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 19 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%2Fmonitor-line-activity-and-gemini-sentiment-with-google-sheet)
- **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.

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

## Workflows like it

Also alerts and monitoring, with the same services where possible, closest in size first.

- [**AI-powered 24-7 CCTV video monitoring & incident reporting** 19 steps · calls a model · Google Drive, Google Sheets](https://millionrounds.com/workflow/ai-powered-24-7-cctv-video-monitoring-and-incident-reporting)
- [**Automated RSS monitoring with Gemini** 19 steps · calls a model · Google Sheets, RSS](https://millionrounds.com/workflow/automated-rss-monitoring-with-gemini)
- [**Daily Google Analytics report with OpenAI and WhatsApp** 19 steps · calls a model · ClickUp, Email](https://millionrounds.com/workflow/daily-google-analytics-report-with-openai-and-whatsapp)
- [**Monitor AI search visibility with Talordata SERP and OpenAI** 19 steps · calls a model · Google Sheets](https://millionrounds.com/workflow/monitor-ai-search-visibility-with-talordata-serp-and-openai)
- [**Monitor competitor prices with OpenAI and Google Sheets** 19 steps · calls a model · Google Sheets, Notion](https://millionrounds.com/workflow/monitor-competitor-prices-with-openai-and-google-sheets)
- [**Monitor warehouse receiving performance with Google Sheets** 19 steps · calls a model · Gmail, Google Sheets](https://millionrounds.com/workflow/monitor-warehouse-receiving-performance-with-google-sheets)