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I automated away someone's entire Monday morning.
They used to spend the first 2 hours of every week copying
lead data from forms into their CRM. Manually. Every single
Monday. For two years.
It took me 3 days to build the workflow that ended that.
Now leads hit the CRM in under 3 minutes — tagged, scored,
and assigned to the right rep automatically. Whether they
come in at 2pm or 2am.
The wildest part? They almost didn't reach out because they
thought "it probably can't be automated."
Almost everything can be automated. Most people just don't
know to ask.
What's the most painful manual task in your business right now?
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n8n + AI Vision — Automated Invoice Processing (PDF → ERP)
Supplier invoices arrive as PDFs in a shared inbox. AI Vision reads each invoice, extracts header, line items and
totals, validates the math, and posts the entry directly to the ERP — SAP, NetSuite, Dynamics, Odoo or Sage.
Exceptions only escalate when truly needed.
The problem
Accounts payable was bottlenecked by inbox triage. Someone had to open every supplier invoice PDF, retype headers,
line items, VAT and totals into the ERP, and chase the supplier when numbers didn't match. Slow, error-prone, and the
backlog built up every month-end.
What I built
A fully automated invoice-to-ERP pipeline that handles the full document flow without a human touch unless something
is genuinely off:
Inbox watcher detects new invoices in the AP shared mailbox.
AI Vision (GPT-4) parses the PDF — supplier data, invoice number, dates, line items, subtotals, VAT, totals.
Validation layer checks the math, matches the supplier against the master vendor list, flags duplicates and missing fields.
ERP posting — entry written directly into SAP / NetSuite / Dynamics / Odoo / Sage via official API or DB connector.
Exception queue — only documents that fail validation hit a human, with the reason pre-explained.
The stack
n8n · GPT-4 Vision (OCR + structured extraction) · ERP connectors (SAP / NetSuite / Microsoft Dynamics / Odoo / Sage)
· Validation engine · Slack/email exception alerts · Audit-ready logs.
Outcome
+400 invoices/month processed end-to-end without human entry
0 typing errors on posted entries — the AI doesn't fat-finger numbers
Month-end closes faster — the AP backlog stops being a bottleneck
Same-day visibility on flagged exceptions
Want something similar?
The same engine handles purchase orders, delivery notes, contracts, customer onboarding forms — anywhere a structured
document arrives by email and gets retyped into a system today.
I audited 9 e-commerce businesses. The same 4 friction problems showed up every time.
Inventory Automation — Real-Time Stock Sync & Auto-Reorder (n8n)
Stock levels monitored across every channel and warehouse in real time. When an SKU drops below its safety threshold,
the system flags it, generates a replenishment order with the right quantity, and sends it to the supplier — before
anyone notices the alert. Zero stockouts, zero manual reorders.
The problem
Stockouts kept catching the team off guard. Inventory was tracked in the ERP, but nobody watched it in real time —
somebody noticed when the warehouse called, or when an order failed to ship. By then, the SKU had been below safety
stock for days, the supplier lead time was already eating into the next sales cycle, and somebody had to manually
draft and send a purchase order.
What I built
A fully automated inventory-to-supplier pipeline that closes the loop without anyone watching:
Real-time stock sync — n8n pulls inventory levels from the ERP / WMS / e-commerce platforms continuously (or via webhooks where supported), keeping a single source of truth.
Threshold engine — every SKU has its own minimum, lead time and reorder quantity. The engine evaluates them on every update.
Critical-stock detection — when an SKU drops below its threshold, it gets flagged, isolated and queued for action.
Replenishment order generation — the system drafts a purchase order with the correct quantity (based on consumption velocity + lead time + safety buffer), assigns it to the right supplier, and sends it via email or EDI.
Audit trail + alerts — every action is logged. The team gets a Slack/email summary, not a fire drill.
The stack
n8n · ERP / WMS / e-commerce connectors · AI for demand-aware reorder quantities · Email / EDI supplier dispatch ·
Slack/email alerts · Audit-ready logs.
Outcome
0 stockouts on monitored SKUs since the pipeline went live
73% reduction in manual reorder hours per week
Supplier orders sent same-day instead of "when someone notices"
Single source of truth across ERP, warehouse and online channels
Want something similar?
The same engine handles multi-warehouse balancing, channel-level allocation, supplier scorecards, and demand
forecasting. Anywhere stock data and a buying decision live in different systems, this closes the gap.
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