Automate Purchase Order Form Submissions from Outlook Excel Attachments with AI — n8n Workflow

High complexity Trigger16 nodes🏷️ Invoice Processing👁 1,989 viewsby Jimleuk

Overview

This n8n template imports purchase order submissions from Outlook and converts attached purchase order forms in XLSX format into structured output.

Data entry jobs with user-submitted XLSX forms are time consuming, incredibly mundane but necessary tasks which in likelihood are inherited and critical to business operation.

While we could dream of system overhauls and modernisation, the fact is that change is hard. There is another way however - using n8n and AI! N8N offers an end-to-end soluti

Nodes used

Microsoft OutlookCodeOpenAI Chat ModelText ClassifierInformation Extractor

Workflow Preview

2. Manually Convert XLSX to Markdown
Learn more about the Extract From File node
Today's LLMs cannot parse Ex
3. Extract Purchase Order Details using AI
Learn more about the Information Extractor
Try it out!
This n8n template imports purchase order submissions fr
Data entry jobs with user-submitt
PURCHASE ORDER EXAMPLE
This is the purchase order XLSX which is used an exampl
https://1drv.ms/x/c/8f1f7dda12b7a145/ETWH8dKwgZ1OiVz7IS
4. Use Simple Validation to Save Time and Eff
Learn more about the Edit Fields node
With our extracted output, we can r
1. Wait For Incoming Purchase Orders
Read more about the Outlook trigger
Our template starts by wat
modelmodel
Extract Purchase Order D…
I
Is Excel Document?
R
Run Checks
I
Is Valid Purchase Order?
E
Extract from File
XLSX to Markdown Table
OpenAI Chat Model
Reply Invalid Format
O
Outlook Trigger
Reply Rejection
Reply Accepted
D
Do Something with Purcha…
F
Fix Excel Dates
Is Submitting a Purchase…
D
Do Nothing
OpenAI Chat Model1
16 nodes15 edges

How it Works

  1. 1

    Trigger

    The workflow starts with a trigger trigger.

  2. 2

    Process

    Data flows through 16 nodes, connecting code, extractfromfile, if.

  3. 3

    Output

    The workflow completes its automation and delivers the result to the configured destination.

Node Details (16)

MI

Microsoft Outlook

microsoftOutlook

#1
CO

Code

code

#2
OP

OpenAI Chat Model

n8n-nodes-langchain.lmChatOpenAi

#3
TE

Text Classifier

n8n-nodes-langchain.textClassifier

#4
IN

Information Extractor

n8n-nodes-langchain.informationExtractor

#5

How to Import This Workflow

  1. 1Click Download JSON button on the right to save the workflow file.
  2. 2Open your n8n instance. Go to Workflows → New → Import from file.
  3. 3Select the downloaded automate-purchase-order-form-submissions-from-outlook-excel-attachments-with-ai file and click Import.
  4. 4Set up credentials for each service node (API keys, OAuth, etc.).
  5. 5Click Test Workflow to verify everything works, then activate it.

Or paste directly in n8n → Import from JSON:

{ "name": "Automate Purchase Order Form Submissions from Outlook Excel Attachments with AI", "nodes": [...], ...}

Integrations

codeextractfromfileifinformationextractorlmchatopenaimicrosoftoutlookmicrosoftoutlooktriggersettextclassifier

Get This Workflow

Download and import in one click

Download JSONView on n8n.io
Nodes16
Complexityhigh
Triggertrigger
Views1,989

Created by

Jimleuk

Jimleuk

@jimleuk

Tags

codeextractfromfileifinformationextractorlmchatopenaimicrosoftoutlookmicrosoftoutlooktriggersettextclassifier

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Standard accounting templates often fail to reflect a premium brand identity. This sophisticated n8n workflow bridges the gap between financial record-keeping and professional client presentation. By moving beyond the native limitations of QuickBooks Online, this automation enables businesses to generate high-end, multi-page PDF invoices that align perfectly with their corporate styling. The process begins the moment a new invoice is generated in QuickBooks, triggering a webhook that captures real-time billing data. The workflow then utilizes advanced HTML-to-File conversion and custom Code nodes to structure data into a polished, branded layout. It handles complex logic such as line-item merging and multi-page formatting automatically. Once the document is rendered, the system bypasses generic 'no-reply' senders by routing the finalized PDF through your preferred email provider. This ensures a seamless, white-labeled experience for your clients while eliminating the manual overhead of exporting, styling, and attaching files. Ideal for agencies and service providers, this flow guarantees that your most frequent touchpoint—the bill—is as professional as your work. **Common Use Cases:** - High-end creative agencies requiring bespoke, white-labeled billing documents for premium clients. - Automated recurring subscription billing where custom tax disclosures or localized branding are required. - Service-based businesses needing to attach dynamic project reports or terms of service directly to QuickBooks invoices.

🔗 Webhook·12 nodes