Workflow Automation for Industrial Manufacturing

23 n8n workflows connecting SAP Business One, Gmail, Slack, and 4 supplier APIs — cutting purchase order processing from 4 hours to 18 minutes and recovering $190k in annual labour cost.

The Challenge

A 12-person operations team at a growing industrial manufacturer was spending nearly half their working hours on manual data routing — pulling purchase orders from email, updating production schedules in spreadsheets, chasing supplier delivery ETAs, and assembling weekly reports from six disconnected systems. The symptoms were familiar:

• 230+ hours per month lost to copy-paste workflows across their production management system, SAP Business One, Gmail, and Google Sheets.
• 3–5 material shortage alerts per week slipping through undetected due to hourly manual dashboard checks on raw material levels.
• Weekly production reporting consuming two full days across three team members before a single planning decision could be made.
• A single operations manager acting as a human integration layer between systems that should have been talking to each other.

The Solution

We deployed n8n as a self-hosted workflow automation platform and built 23 production workflows connecting their production management system, SAP Business One, Gmail, Slack, Google Sheets, and four supplier APIs.

Purchase Order to Production Automation: Approved purchase orders are automatically pulled from the procurement inbox, validated against current production schedules and raw material availability, pushed to SAP B1, and a fulfilment notification dispatched to the plant floor team on Slack — all within seconds of approval.

Supplier Delivery Tracking: Inbound supplier emails are parsed for shipment updates and delivery ETAs. Any confirmed delay beyond threshold triggers an escalation to the relevant production planner, with the affected PO and impacted production runs pre-populated for immediate action.

Material Shortage Alert Engine: Raw material stock levels are checked every 15 minutes against live production demand. When a component crosses a configurable reorder threshold, a Slack alert fires with a one-click purchase order draft routed to the appropriate supplier — no manual monitoring required.

Automated Reporting Pipeline: Data is pulled nightly from all six source systems, formatted into a standardised operations report, and distributed to 12 stakeholders every Monday morning before the shift briefing begins.

The Outcome

The results compounded quickly — small friction eliminated at scale adds up:

• 230 hours reclaimed monthly — equivalent to 1.4 full-time employees redirected to production planning and strategic work.
• Purchase order processing time reduced from an average of 4.2 hours to 18 minutes, end-to-end.
• Zero missed material shortage alerts in the months following go-live, down from 3–5 per week.
• $190,000 in annual labour cost recovered, calculated against the team’s blended hourly rate.
• 3-week implementation with zero production disruption — all workflows staged and validated in parallel before go-live.