Expense Logging with Telegram to Google Sheets using AI Voice & Text Parsing

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Important notice

This workflow is provided as-is. Please review and test before using in production.

1. Workflow Overview

Use Cases Personal or family budget tracking. Small business expense logging via Telegram Hands free logging (using voice messages) How it works: Trigger receives text or voice. Optional branch tra...

Best for

Personal Productivity automation workflows
AI Summarization automation workflows
advanced n8n builders looking for reusable templates

Tools used

@n8n/n8n-nodes-langchain.lmchatopenai, @n8n/n8n-nodes-langchain.outputparserstructured, @n8n/n8n-nodes-langchain.chainllm, n8n-nodes-base.googlesheets, n8n-nodes-base.wait, n8n-nodes-base.telegram, n8n-nodes-base.splitout, n8n-nodes-base.splitinbatches

Source and attribution

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

Original n8n.io source

1.1 Workflow description

Title: Expense Logging with Telegram to Google Sheets using AI Voice & Text Parsing
Workflow name: Expense Logging with Telegram to Google Sheets using AI Voice & Text Parsing

Use Cases

-Personal or family budget tracking.

-Small business expense logging via Telegram

-Hands-free logging (using voice messages)

How it works:

-Trigger receives text or voice.

-Optional branch transcribes audio to text.

-AI parses into a structured array (SOP enforces schema).

-Split Out produces 1 item per expense.

-Loop Over Items appends rows sequentially with a Wait, preventing missed writes.

-In parallel, Item Lists (Aggregate) builds a single summary string; Merge (Wait for Both) releases one final Telegram confirmation.

Setup Instructions

Connect credentials: Telegram, Google, OpenAI.
Sheets: Create a sheet with headers Date, Category, Merchant, Amount, Note. Copy Spreadsheet ID + sheet name.
Map columns in Append to Google Sheet.
Pick models: set Chat model (e.g., gpt-4o-mini) and Whisper for transcription if using audio.
Wait time: keep 500–1000 ms to avoid API race conditions.
Run: Send a Telegram message like: Gas 34.67, Groceries 82.45, Coffee 6.25, Lunch 14.90.

Customization ideas:

-Add categories map (Memory/Set) for consistent labeling.

-Add currency detection/formatting.

-Add error-to-Telegram path for invalid schema.

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 - OpenAI Chat Model

Type / Role: @n8n/n8n-nodes-langchain.lmChatOpenAi - lmChatOpenAi
Config choices: Version 1.2

Block 2 - Structured Output Parser

Type / Role: @n8n/n8n-nodes-langchain.outputParserStructured - outputParserStructured
Config choices: Version 1.3

Block 3 - Parse Expenses with AI

Type / Role: @n8n/n8n-nodes-langchain.chainLlm - chainLlm
Config choices: Version 1.7

Block 4 - Append to Google Sheet

Type / Role: n8n-nodes-base.googleSheets - googleSheets
Config choices: Version 4.7

Block 5 - Wait 0.5 seconds

Type / Role: n8n-nodes-base.wait - wait
Config choices: Version 1.1

Block 6 - Send Telegram Confirmation

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

Block 7 - Split Out

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

Block 8 - Loop Over Items

Type / Role: n8n-nodes-base.splitInBatches - splitInBatches
Config choices: Version 3

Block 9 - Telegram Message Trigger

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

Block 10 - Check if Audio file

Type / Role: n8n-nodes-base.if - if
Config choices: Version 2.2

Block 11 - Transcribe audio

Type / Role: @n8n/n8n-nodes-langchain.openAi - openAi
Config choices: Version 1.8

Block 12 - Set field

Type / Role: n8n-nodes-base.set - set
Config choices: Version 3.4

Block 13 - Merge

Type / Role: n8n-nodes-base.merge - merge
Config choices: Version 3.2

Block 14 - Get File

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

Block 15 - Sticky Note1

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

Block 16 - Build Expense Summary Text

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

Block 17 - Build Confirmation Text

Type / Role: n8n-nodes-base.set - set
Config choices: Version 3.4

Block 18 - Sticky Note2

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

Block 19 - Sticky Note

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

Block 20 - Sticky Note3

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

Block 21 - Sticky Note4

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

Block 22 - Sticky Note5

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

3. Summary Table

Workflow	Expense Logging with Telegram to Google Sheets using AI Voice & Text Parsing
Complexity	advanced
Nodes	22
Categories	Personal Productivity, AI Summarization
Author	Calvin Cunningham
Published	18 Nov 2025

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

Use the JSON export at /data/workflows/10993/10993.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 AI Summarization workflows

Frequently asked questions

What does Expense Logging with Telegram to Google Sheets using AI Voice & Text Parsing 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, AI Summarization use case.

Calvin Cunningham

3 workflows

Nodes

@n8n/n8n-nodes-langchain.lmchatopenai @n8n/n8n-nodes-langchain.outputparserstructured @n8n/n8n-nodes-langchain.chainllm n8n-nodes-base.googlesheets n8n-nodes-base.wait n8n-nodes-base.telegram n8n-nodes-base.splitout n8n-nodes-base.splitinbatches

Complexity

advanced

Published 18 Nov 2025

Likes 0

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Install path: /data/workflows/10993/10993.json

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Expense Logging with Telegram to Google Sheets using AI Voice & Text Parsing

Workflow preview

Important notice

1. Workflow Overview

Best for

Tools used

Source and attribution

1.1 Workflow description

Use Cases

How it works:

Setup Instructions

Customization ideas:

1.2 Logical Blocks

2. Block-by-Block Analysis

Block 1 - OpenAI Chat Model

Block 2 - Structured Output Parser

Block 3 - Parse Expenses with AI

Block 4 - Append to Google Sheet

Block 5 - Wait 0.5 seconds

Block 6 - Send Telegram Confirmation

Block 7 - Split Out

Block 8 - Loop Over Items

Block 9 - Telegram Message Trigger

Block 10 - Check if Audio file

Block 11 - Transcribe audio

Block 12 - Set field

Block 13 - Merge

Block 14 - Get File

Block 15 - Sticky Note1

Block 16 - Build Expense Summary Text

Block 17 - Build Confirmation Text

Block 18 - Sticky Note2

Block 19 - Sticky Note

Block 20 - Sticky Note3

Block 21 - Sticky Note4

Block 22 - Sticky Note5

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