Track invoice spending vs budget from Google Drive with GPT-4o and Telegram alerts — n8n ワークフロー

複雑度 トリガー88個のノード🏷️ Invoice Processing👁 6回閲覧作成者:Dmitrij Zykovic

概要

Invoice Budget Tracker

Drop invoices to Google Drive and let AI handle the rest - OCR extraction, automatic categorization, budget tracking, and Telegram alerts when spending reaches thresholds.

✨ Key Features

📄 Invoice OCR** - Extracts data from PDF/image invoices automatically 🤖 AI Categorization** - Detects document type (skips contracts, delivery acts) and categorizes real invoices 💰 Budget Tracking** - Set monthly budgets per category, track spending in real-time 🔔 Smart Alerts** - Get n

使用ノード

HTTP RequestTelegramGoogle DriveCryptoCodeAI AgentSimple MemoryStructured Output ParserCalculatorCall n8n Workflow ToolOpenRouter Chat ModelThink ToolMCP Client Tool

ワークフロープレビュー

Invoice Budget Tracker
Auto-categorize business invoices and track spending vs
Quick Start Guide
1. Setup Google Drive
1.1 Create Google OAuth credentials
- https
2. Budget Management AI Agent
Telegram-based budget configuration via AI Agent + MCP
3. Weekly Budget Check
Weekly check on current month's budget progress (every
4. Monthly Summary
Scheduled report generation on 10th of each month
Cleanup / Reset
This is MANUAL trigger to full data cleanup. Warning -
Scheduled Trigger
Ensure Tool Configuration Exists
Before starting processing, we should have a Telegram b
Loop over unprocessed files
- Get all files in folder, iterate one by one
- Make sure you have selected right (inbox) directory h
Chat Trigger
Ensure Bot Privacy
On first use, the bot stores the user ID and locks acce
Add processing started message
Notify user about processing start (with message ... )
Build Agent Input
Budget Agent Processing
- answer to user message
- ensure budget is set as expected
Result / Reply Message
Sends reply to the user
1.1 Document Processing Loop / Data Extractio
Get Config and Validate Input File
- Document not marked for manual review
- Document not marked as duplicate
Get Document Content
- Downloads file
- Extract text from file
- Calculate file hash
Load Budget Data
- Budget json loaded from config storage
Require manual review
- If OCR / text extraction failed
- If categorizer identified invalid content
Extract Invoice Data
1.2 Document Processing Loop / Invoice Proces
Handle Duplicate Invoice
- Rename as duplicate (for manual processing)
- Notify user about duplicate
Duplicate Check
Save Record
Update Summary
Budget Alerts
Rename Document
- Use invoice details to build new document name
Ensure Month Folder Exists
Move Document to Month Folder
Success Notification
- Send message to user with invoice details
Weekly Trigger
Get Weekly Summary
- Do not proceed if summary does not exist yet
Send Weekly Notification
Monthly Trigger
Get Monthly Summary
- Do not proceed if summary does not exist yet
Send Monthly Notification
Monthly Summary Calculation Logic
- Respond with summary or error message
- Uses subworkflow (workflow with same id)
5. Data Reset
- Removes all account / project data
tooltooltoolmemorytooltoolmodelmodelmodelparser
DownloadInvoice
CheckInvoiceExists
I
IfNewInvoice
OcrExtract
I
IfOcrSuccess
GetBudgets
Gpt4oCategorizer
SaveInvoice
GetSummary
SaveSummary
I
IfNeedsAlert
AlertMessage
RenameFile
SearchMonthFolder
I
IfFolderExists
CreateMonthFolder
MoveToMonth
SuccessLog
ErrorAlert
B
BudgetTrigger
I
IfFirstRun
SaveAppSettings
NotAuthorizedMessage
B
BudgetInput
Gpt4oBudgetAgent
JsonStorageMcp
Calculator
Think
BudgetMemory
BudgetReply
WelcomeMessage
W
WeeklyTrigger
GetWeeklySummary
I
IfHasData
CalcWeeklySummary
B
BuildWeeklyMessage
WeeklySummaryMessage
Crypto
W
WorkflowConfig
R
ResultFolder
RenameToReview
DuplicateLog
I
IfNotForReviewOrDuplicate
GetFiles
L
LoopInput
H
HourlyTrigger
M
Merge
O
OcrOutput
I
InputFile
P
ProcessingInput
S
StorageInput
M
MonthlyTrigger
MonthlySummaryMessage
I
IfHasMonthlyData1
CalcMonthlySummary
B
BuildMonthlyMessage
W
WorkflowInput
G
GetMonthlySummaryTrigger
MonthlySummary
GetMonthlySummary
G
GetMonthlySummaryText
CalcSummary
S
SummaryInput
I
IfAuthorized
GetAppConfig2
E
ErrorOutput
M
ManualResetTrigger
ForEachCategory
DeleteItem
GetAppSettings
GetAppSettings1
GetAppSettings2
I
IfRegistrationExists
I
IfStartMessage
BudgetAgent
I
IfInvalidContent
RenameAsDuplicate
GetAppSettings3
ApproveRemove
I
IfApproved
F
FirstRunOnlyStart
ForEachCategoryItem
I
If
S
SetDefaults
Think1
AICategorizer
StructuredOutputParser
RestartMessage
88 nodes87 edges

仕組み

  1. 1

    トリガー

    このワークフローは トリガー トリガーで開始します。

  2. 2

    処理

    データは 88 個のノードを流れます, connecting agent, code, crypto。

  3. 3

    出力

    ワークフローは自動化を完了し、設定された宛先に結果を配信します。

ノード詳細 (88)

HT

HTTP Request

httpRequest

#1
TE

Telegram

telegram

#2
GO

Google Drive

googleDrive

#3
CR

Crypto

crypto

#4
CO

Code

code

#5
AI

AI Agent

n8n-nodes-langchain.agent

#6
SI

Simple Memory

n8n-nodes-langchain.memoryBufferWindow

#7
ST

Structured Output Parser

n8n-nodes-langchain.outputParserStructured

#8
CA

Calculator

n8n-nodes-langchain.toolCalculator

#9
CA

Call n8n Workflow Tool

n8n-nodes-langchain.toolWorkflow

#10
OP

OpenRouter Chat Model

n8n-nodes-langchain.lmChatOpenRouter

#11
TH

Think Tool

n8n-nodes-langchain.toolThink

#12
MC

MCP Client Tool

n8n-nodes-langchain.mcpClientTool

#13

このワークフローのインポート方法

  1. 1右側の JSONをダウンロード ボタンをクリックしてワークフローファイルを保存します。
  2. 2n8nインスタンスを開き、ワークフロー → 新規 → ファイルからインポート に進みます。
  3. 3ダウンロードした track-invoice-spending-vs-budget-from-google-drive-with-gpt-4o-and-telegram-alerts ファイルを選択し、インポートをクリックします。
  4. 4各サービスノードの 認証情報(APIキー、OAuthなど)を設定します。
  5. 5ワークフローをテスト をクリックして動作確認し、有効化します。

またはn8nの JSONからインポート に直接貼り付け:

{ "name": "Track invoice spending vs budget from Google Drive with GPT-4o and Telegram alerts", "nodes": [...], ...}

インテグレーション

agentcodecryptoexecuteworkflowexecuteworkflowtriggergoogledrivehttprequestiflmchatopenroutermanualtriggermcpclienttoolmemorybufferwindowmergeoutputparserstructuredscheduletriggersetsplitinbatchestelegramtelegramtriggertoolcalculator

このワークフローを取得

ワンクリックでダウンロード&インポート

JSONをダウンロードn8n.ioで見る
ノード88
複雑度high
トリガーtrigger
閲覧数6
カテゴリInvoice Processing

作成者

Dmitrij Zykovic

Dmitrij Zykovic

@dmitrijz

タグ

agentcodecryptoexecuteworkflowexecuteworkflowtriggergoogledrivehttprequestiflmchatopenroutermanualtrigger

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🔗 Webhook·12 nodes