Subcontractor Production Tracking: A Practical Guide
From garment sewing and metal finishing to heat treatment, plating, painting, and packaging, many manufacturers rely on subcontractors for part of their production. The model brings flexibility and expertise, but it comes at a price: once materials leave the factory, visibility drops. How many parts are at each subcontractor, how many have been processed, how much scrap has been produced, and when the order will return are often tracked through phone calls, messaging apps, and spreadsheets. Effective subcontractor production tracking replaces that guesswork with a clear, current view of every outsourced job.
Note: Dispatch documentation, ownership rules, and the tax treatment of subcontracted work vary by country. Confirm local requirements with your accountant.
Why Subcontracted Work Is Hard to Track
- Your stock sits elsewhere: materials sent to a subcontractor still belong to you, but they are physically somewhere else and easy to lose sight of.
- Partial returns: a job often comes back in several batches, making it unclear what has been delivered and what is still outstanding.
- Scrap and yield: the difference between what was sent and what came back is hard to split into acceptable scrap and real loss.
- Multiple steps and suppliers: a single product may pass through cutting, processing, and finishing at different subcontractors.
- Delayed information: progress is only known when someone calls to ask.
What Subcontractor Production Tracking Should Cover
- Work orders: which product, which operation, which subcontractor, what quantity, and which due date.
- Materials sent: type, quantity, batch or lot, and the dispatch document for each shipment.
- Stock at the subcontractor: how much of your material is currently at each supplier.
- Returned goods: good, defective, and rework quantities recorded separately.
- Scrap: an agreed allowance per operation and the actual scrap on each return.
- Quality results: incoming inspection outcomes and defect types.
- Cost: processing charges per operation and how they flow into product cost.
Treat Each Subcontractor as a Location
The simplest way to keep control of materials is to set up each subcontractor as a separate stock location in your system. Every dispatch moves stock from your warehouse to that location, and every return moves processed goods back. At any moment you can see exactly how much of your material sits at each supplier, which jobs are still open, and which returns are overdue. Linking every dispatch and return document to a specific work order makes reconciliation with the subcontractor's invoice straightforward.
Managing Scrap and Yield
Some scrap is a normal part of subcontracted work, but uncontrolled scrap is one of the largest hidden costs. Agree an acceptable scrap or yield allowance for each operation and product type in writing. On every return, record the quantity sent, good quantity returned, defects, and scrap. When the allowance is exceeded, you can raise it with the subcontractor immediately and, where agreed, recover the cost.
Over time, scrap data becomes a valuable management tool. Seeing which subcontractors produce more scrap on which operations, and how rates change over time, gives an objective basis for pricing discussions and for deciding where to place work.
Delivery and Quality Tracking
Record the planned due date for every work order alongside the actual return date. Because subcontractor delays directly affect customer deliveries, early warnings matter: jobs approaching their due date without a return should be flagged automatically, long before the last day.
Inspect returned goods on arrival and record the results with defect types. A simple subcontractor scorecard combining on-time delivery, scrap rate, and quality results shows clearly which suppliers to grow with and which need improvement.
From Spreadsheets to a System
With a handful of subcontractors and jobs, spreadsheets can cope. As work orders multiply, products pass through several suppliers, and partial returns become common, spreadsheets quickly fall out of date. A system built for subcontractor production tracking typically offers:
- A live view of quantities sent, at the subcontractor, and returned for every work order
- Barcode or QR scanning for dispatch and receipt
- Automatic alerts when scrap allowances are exceeded or due dates approach
- A simple supplier portal where subcontractors update job status themselves
- Automatic matching of dispatch documents, returns, and subcontractor invoices
- Subcontracting costs flowing directly into product cost and the ERP
Frequently Asked Questions
How do you track materials sent to a subcontractor?
Set up each subcontractor as a separate stock location. Record dispatches as transfers into that location and returns as transfers back, each linked to a work order. This shows exactly how much material sits at each supplier at any time.
What is an acceptable scrap rate for subcontracted work?
There is no single correct rate; it depends on the product, the operation, and the material. The key is to agree an allowance per operation in writing and to record actual scrap on every return.
How should subcontractor performance be measured?
On-time delivery, scrap or yield rate, and incoming quality results are the three core measures. Tracking them per subcontractor gives an objective basis for placing work and negotiating prices.
Do subcontractors need access to our system?
Not necessarily, but a simple supplier portal where subcontractors confirm receipt, update progress, and report dispatch dates reduces phone calls and keeps information current.
Is our ERP enough for subcontractor production tracking?
For simple processes and a few suppliers, an ERP subcontracting module may be enough. Multi-step routings, many subcontractors, industry-specific scrap rules, or supplier portals often call for a custom solution integrated with the ERP.
Conclusion
Subcontractor production tracking connects work orders, materials sent and returned, stock at each supplier, scrap, quality, due dates, and cost in one view. When this information lives in phone calls and spreadsheets, lost materials, uncontrolled scrap, and late orders follow. We build production tracking systems for textile, metal, packaging, and other manufacturers that bring subcontractors into the process and integrate with the ERP they already use.