Send Outlook calendar due reminders to Telegram for today, tomorrow and week

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1. Workflow Overview

Quick Overview This workflow monitors a Microsoft Outlook calendar on a schedule and sends Telegram group digests for events due today, tomorrow, and within the next week. How it works 1. Runs dail...

Best for

Personal Productivity automation workflows
advanced n8n builders looking for reusable templates

Tools used

n8n-nodes-base.stickynote, n8n-nodes-base.microsoftoutlook, n8n-nodes-base.if, n8n-nodes-base.aggregate, n8n-nodes-base.scheduletrigger, n8n-nodes-base.filter, n8n-nodes-base.telegram

Source and attribution

This workflow is cataloged by N8N Workflows and links back to its original n8n.io source page by Kristian.

Original n8n.io source

1.1 Workflow description

Title: Send Outlook calendar due reminders to Telegram for today, tomorrow and week
Workflow name: Send Outlook calendar due reminders to Telegram for today, tomorrow and week

Quick Overview

This workflow monitors a Microsoft Outlook calendar on a schedule and sends Telegram group digests for events due today, tomorrow, and within the next week.

How it works

Runs daily at midnight to fetch events from a selected Microsoft Outlook calendar and filters them to only those happening today.
Aggregates today’s matching events into a single list and sends a Telegram message with the subjects and dates.
Runs daily to fetch events from the same Microsoft Outlook calendar and filters them to only those starting within the next 24 hours.
Aggregates tomorrow’s matching events into a single list and sends a Telegram message with the subjects and dates.
Runs weekly to fetch all upcoming events from the Microsoft Outlook calendar and filters them to only those occurring between now and one week from now.
If there are any events in that window, aggregates them into a single list and sends a Telegram weekly digest with the subjects and dates.

Setup

Add Microsoft Outlook OAuth2 credentials and select the target calendar (update the calendar ID where it is set to YOUR_OUTLOOK_CALENDAR_ID).
Add Telegram Bot API credentials, then set the destination YOUR_TELEGRAM_GROUP_CHAT_ID in each Telegram message action.
Adjust the schedule trigger times (daily and weekly) to match your timezone and reminder cadence.
Edit the Telegram message templates to match your team’s wording and @mentions.

1.2 Logical Blocks

This catalog entry is organized from the workflow JSON. The node-level section below shows the executable blocks available for review before importing the template.

2. Block-by-Block Analysis

Block 1 - 📋 Setup & Operations

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 2 - Get many events

Type / Role: n8n-nodes-base.microsoftOutlook - microsoftOutlook
Config choices: Version 2

Block 3 - If item length is zero

Type / Role: n8n-nodes-base.if - if
Config choices: Version 2.3

Block 4 - Aggregate

Type / Role: n8n-nodes-base.aggregate - aggregate
Config choices: Version 1

Block 5 - Trigger weekly on Sunday

Type / Role: n8n-nodes-base.scheduleTrigger - scheduleTrigger
Config choices: Version 1.3

Block 6 - Filter checks due day before

Type / Role: n8n-nodes-base.filter - filter
Config choices: Version 2.3

Block 7 - Aggregate check data

Type / Role: n8n-nodes-base.aggregate - aggregate
Config choices: Version 1

Block 8 - Send reminder on checks due day before

Type / Role: n8n-nodes-base.telegram - telegram
Config choices: Version 1.2

Block 9 - Send reminder on checks due for the week

Type / Role: n8n-nodes-base.telegram - telegram
Config choices: Version 1.2

Block 10 - Trigger daily

Type / Role: n8n-nodes-base.scheduleTrigger - scheduleTrigger
Config choices: Version 1.3

Block 11 - Filter checks due today

Type / Role: n8n-nodes-base.filter - filter
Config choices: Version 2.3

Block 12 - Get events for today

Type / Role: n8n-nodes-base.microsoftOutlook - microsoftOutlook
Config choices: Version 2

Block 13 - Get events for tomorrow

Type / Role: n8n-nodes-base.microsoftOutlook - microsoftOutlook
Config choices: Version 2

Block 14 - Aggregate check data for today

Type / Role: n8n-nodes-base.aggregate - aggregate
Config choices: Version 1

Block 15 - Send reminder on checks due today

Type / Role: n8n-nodes-base.telegram - telegram
Config choices: Version 1.2

Block 16 - Trigger daily at midnight

Type / Role: n8n-nodes-base.scheduleTrigger - scheduleTrigger
Config choices: Version 1.3

Block 17 - Filter checks due this week

Type / Role: n8n-nodes-base.filter - filter
Config choices: Version 2.3

Block 18 - Sticky Note

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 19 - Sticky Note1

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 20 - Sticky Note2

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

3. Summary Table

Workflow	Send Outlook calendar due reminders to Telegram for today, tomorrow and week
Complexity	advanced
Nodes	20
Categories	Personal Productivity
Author	Kristian
Published	13 Jun 2026

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

Use the JSON export at /data/workflows/16327/16327.json as the source template for this automation.
2. Import the template into n8n

Open n8n, import the downloaded JSON, and review each node before activating the workflow.
3. Configure credentials and variables

Replace placeholder credentials, API keys, webhook URLs, account IDs, and environment-specific values with your own settings.
4. Test with sample data

Run the workflow manually or in a staging workspace, inspect node output, and confirm downstream systems receive the expected data.
5. Activate and monitor

Enable the workflow only after testing, then monitor executions, errors, and rate limits during the first production runs.

5. General Notes & Resources

Review imported nodes carefully before activation. This catalog entry is intended to help you inspect the workflow structure, understand required services, and find related templates faster.

Node names, credentials, schedules, webhook paths, and external service limits may need adjustment for your workspace.

Download workflow JSON Original n8n.io source Personal Productivity workflows

Frequently asked questions

What does Send Outlook calendar due reminders to Telegram for today, tomorrow and week do?

What do I need before importing this workflow?

Review the workflow JSON, configure any required credentials in n8n, and test the automation in a safe workspace before using it in production.

Can I customize this workflow?

Yes. Use the block-by-block analysis and the downloadable JSON to inspect each node, then adjust credentials, prompts, schedules, filters, or destinations for your Personal Productivity use case.

Kristian

3 workflows

Nodes

n8n-nodes-base.stickynote n8n-nodes-base.microsoftoutlook n8n-nodes-base.if n8n-nodes-base.aggregate n8n-nodes-base.scheduletrigger n8n-nodes-base.filter n8n-nodes-base.telegram

Complexity

advanced

Published 13 Jun 2026

Likes 0

View on n8n.io Download Workflow

Install path: /data/workflows/16327/16327.json

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Send Outlook calendar due reminders to Telegram for today, tomorrow and week

Workflow preview

1. Workflow Overview

Best for

Tools used

Source and attribution

1.1 Workflow description

Quick Overview

How it works

Setup

1.2 Logical Blocks

2. Block-by-Block Analysis

Block 1 - 📋 Setup & Operations

Block 2 - Get many events

Block 3 - If item length is zero

Block 4 - Aggregate

Block 5 - Trigger weekly on Sunday

Block 6 - Filter checks due day before

Block 7 - Aggregate check data

Block 8 - Send reminder on checks due day before

Block 9 - Send reminder on checks due for the week

Block 10 - Trigger daily

Block 11 - Filter checks due today

Block 12 - Get events for today

Block 13 - Get events for tomorrow

Block 14 - Aggregate check data for today

Block 15 - Send reminder on checks due today

Block 16 - Trigger daily at midnight

Block 17 - Filter checks due this week

Block 18 - Sticky Note

Block 19 - Sticky Note1

Block 20 - Sticky Note2

3. Summary Table

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

2. Import the template into n8n

3. Configure credentials and variables

4. Test with sample data

5. Activate and monitor

5. General Notes & Resources

Frequently asked questions