Automate Invoice Processing from Gmail with Azure GPT-4.1 and Human Verification — Workflow n8n

Moyen complexité Déclencheur11 nœuds🏷️ Invoice Processingpar Sachin Shrestha

Aperçu

This workflow contains community nodes that are only compatible with the self-hosted version of n8n.

This n8n workflow automates invoice management by integrating Gmail, PDF analysis, and Azure OpenAI GPT-4.1, with an optional human verification step for accuracy and control. It's ideal for businesses or individuals who regularly receive invoice emails and want to streamline their accounts payable process with minimal manual effort.

The system continuously monitors Gmail for new messages from

Nœuds utilisés

GmailAzure OpenAI Chat ModelInformation Extractor

Aperçu du workflow

Triggers Gmail when new email from specific e
Checks if there is any pdf attachments in ema
If both are true, it extracts the information
If not, it gives an error saying that there is no invoi
This checks the extracted information from th
Based on the information, if it is invoice, it gives ou
If "Yes", it merges response to
After verifying that the file is an invoice,
Use this to automatically save invoice receiv
model
G
Gmail Trigger
I
IF: AI Says Yes
S
Save PDF Locally
M
Merge
Information Extractor
I
Is this PDF?
Send a message
Invoice Saved Message
Azure OpenAI Chat Model
Manual Verification
E
Error Handler
11 nodes11 edges

Comment ça fonctionne

  1. 1

    Déclencheur

    Le workflow démarre avec un déclencheur déclencheur.

  2. 2

    Traitement

    Les données transitent par 11 nœuds, connecting gmail, gmailtrigger, if.

  3. 3

    Sortie

    Le workflow termine son automatisation et livre le résultat à la destination configurée.

Détails des nœuds (11)

GM

Gmail

gmail

#1
AZ

Azure OpenAI Chat Model

n8n-nodes-langchain.lmChatAzureOpenAi

#2
IN

Information Extractor

n8n-nodes-langchain.informationExtractor

#3

Comment importer ce workflow

  1. 1Cliquez sur le bouton Télécharger JSON à droite pour enregistrer le fichier du workflow.
  2. 2Ouvrez votre instance n8n. Accédez à Workflows → Nouveau → Importer depuis un fichier.
  3. 3Sélectionnez le fichier automate-invoice-processing-from-gmail-with-azure-gpt-41-and-human-verification téléchargé et cliquez sur Importer.
  4. 4Configurez les identifiants pour chaque nœud de service (clés API, OAuth, etc.).
  5. 5Cliquez sur Tester le workflow pour vérifier que tout fonctionne, puis activez-le.

Ou collez directement dans n8n → Importer depuis JSON :

{ "name": "Automate Invoice Processing from Gmail with Azure GPT-4.1 and Human Verification", "nodes": [...], ...}

Intégrations

gmailgmailtriggerifinformationextractorlmchatazureopenaimergestopanderrorwritebinaryfile

Obtenir ce workflow

Téléchargez et importez en un clic

Télécharger JSONVoir sur n8n.io
Nœuds11
Complexitémedium
Déclencheurtrigger

Créé par

Sachin Shrestha

Sachin Shrestha

@sachin

Tags

gmailgmailtriggerifinformationextractorlmchatazureopenaimergestopanderrorwritebinaryfile

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Automate Custom QuickBooks Invoice PDFs & Email with n8n

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🔗 Webhook·12 nodes