PACK - FULL WORKFLOW
Make a sales order in your MRP from a customer PO email.
| Estimated tool cost | n8n Cloud from €20/mo (or self-host free) + API usage |
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| Company size | 10-200 employees |
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| Difficulty | Medium |
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Traveler — Make a sales order in your MRP from a customer PO email.
OP COUNT: 5 · GATE COUNT: 0
OP 10
n8n reads a shared inbox.
OP 20
A large language model (LLM) reads the PO lines.
OP 40
A person approves the JSON.
OP 50
The MRP API makes the sales order.
| Problem | People type each purchase order (PO) from a PDF again into the ERP or the MRP. The new text has errors. The work takes more time. |
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| What to measure | Measure the time you save on each PO. Count the entry errors. Use your own baseline. |
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| Tools | n8n, OpenAI API or Claude API, MRPeasy API |
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Premium workflow. Build it in steps.
The procedure makes a draft sales order in your MRP from a customer PO email. A person approves each order before the MRP posts it.
n8n template + LLM instructionsSetup: MediumSetup time: Not yet timed — unverifiedRun time: Not yet timed — unverified
- Recommended tool
- n8n and the Claude API, with a person who approves. Use this path in production when the PO count is high enough for the setup. First, use Claude in chat, for example a Claude Project. Test one PO at a time. Check the extraction on your real POs before you automate.
- Alternative
- ChatGPT (chat). Use ChatGPT when the shop already pays for it and the people know it. Choose one chat tool as the standard. Keep one output format. In n8n, you can change the model.
- Inputs
- Customer PO email with a PDF attachment
- Item master as a CSV export
- Customer master
- Outputs
- Draft sales order. The MRP creates it only after a person approves
- Approval request
- Audit log row
- Queue for POs that do not match
- Before you start
- A shared inbox for customer POs
- Sample POs for the test
- Exports of the item master and the customer master
- A demo MRP account for the first test
This workflow is a draft. I will mark it as tested only after I run it from start to end on real POs.
Version 0.1-draft · Last tested: Not tested from start to end yet · Tested with: Not recorded yet
What the full workflow contains
- A chat procedure in steps (Path A)
- Prompts that you copy
- An n8n node outline for the automated path (Path B)
- Points where a person must approve
- A test on copies of real POs
- Premium Five rules. A person checks these rules before the MRP posts an order
- Premium Path A, in chat. Put one PO into a clean list of order lines
- Premium Path B, in n8n. The path goes from the inbox to the approval request and then to the draft order
- Premium Test. Prove the procedure on copies of real POs before you use it on live orders
- Premium What you measure. Set your own baseline for time and for errors
Premium workflows are coming soon. This page does not show the full steps or the template. We will send them by email later. Join the newsletter. We will tell you when this workflow is ready.
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