# Send payment check due-date reminders with Google Calendar: n8n workflow

> Started by a clock, and works across Google Calendar and Telegram. 16 steps, 1 branch: a working afternoon to understand properly.

Source: https://millionrounds.com/workflow/send-payment-check-due-date-reminders-with-google-calendar (Millionrounds; every figure on the page links to its filing or article)

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

# Send payment check due-date reminders with Google Calendar

Started by a clock, and works across Google Calendar and Telegram. 16 steps, 1 branch: a working afternoon to understand properly.

Medium

[Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Fsend-payment-check-due-date-reminders-with-google-calendar)

**16 steps** Medium: a working afternoon

**1** Branch: places the flow splits

**0** Loops or waits

**2** Services it connects to

## The flow

Starts it 3 Logic 7 Service 6

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

- 1 **Trigger weekly at Sunday** Schedule trigger *Starts it*
- 2 **Trigger daily at midnight** Schedule trigger *Starts it*
- 3 **Trigger daily** Schedule trigger *Starts it*
- 4 **Get events today until next week** Google Calendar *Service*
- 5 **Get events for tomorrow** Google Calendar *Service*
- 6 **Get events for today** Google Calendar *Service*
- 7 **Filter checks due next week** Filter *Logic*
- 8 **Filter checks due day before** Filter *Logic*
- 9 **Filter checks due today** Filter *Logic*
- 10 **If item length is zero** If *Logic*
- 11 **Aggregate check data for tomorrow** Aggregate *Logic*
- 12 **Aggregate checks data for today** Aggregate *Logic*
- 13 **Aggregate** Aggregate *Logic*
- 14 **Send reminder day before for checks due** Telegram *Service*
- 15 **Send reminder on due date for checks** Telegram *Service*
- 16 **Send reminder week before for checks due** Telegram *Service*

## How it's built

- **Starts on:** A clock
- **Steps:** 16, with 1 branch
- **Size:** Medium: a working afternoon
- **Connects to:** Google Calendar, Telegram
- **Model:** None. This is plumbing, not judgement

## Questions

What does it need to run?

An n8n account, plus your own Google Calendar and Telegram 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. 16 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 16 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-payment-check-due-date-reminders-with-google-calendar)
- **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 Calendar](https://millionrounds.com/workflows?service=Google+Calendar#library)[Telegram](https://millionrounds.com/workflows?service=Telegram#library)

## Workflows like it

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

- [**Extract and organize receipt data with Notion and Telegram** 16 steps · Email, Notion](https://millionrounds.com/workflow/extract-and-organize-receipt-data-with-notion-and-telegram)
- [**Jotform commerce sync: Telegram confirmation & Zoho invoice** 16 steps · Google Sheets, Telegram](https://millionrounds.com/workflow/jotform-commerce-sync-telegram-confirmation-and-zoho-invoice)
- [**Automated invoice creation & customer communication** 16 steps · calls a model · Outlook, Telegram](https://millionrounds.com/workflow/automated-invoice-creation-and-customer-communication)
- [**Expense Logging with Telegram and Text Parsing** 16 steps · calls a model · Google Sheets, Telegram](https://millionrounds.com/workflow/expense-logging-with-telegram-and-text-parsing)
- [**Process Telegram invoice OCR with OCR.space and OpenAI** 16 steps · calls a model · Google Drive, Google Sheets](https://millionrounds.com/workflow/process-telegram-invoice-ocr-with-ocr-space-and-openai)
- [**Review and approve employee expenses with OpenAI** 16 steps · calls a model · Gmail, Google Calendar](https://millionrounds.com/workflow/review-and-approve-employee-expenses-with-openai)