ERPNext Manufacturing in France

Drawing revisions and order-driven bills of materials

A mechanical subcontractor rarely designs its own products. The customer sends a drawing with a revision index, the workshop prices it, makes it and must later prove which revision went into which delivery. ERPNext handles this with items, multiple bills of materials per item and a default BOM, but the conventions need deciding before any data is loaded.

Choices I make with your methods and production leads:

• One item per customer part. The customer's reference and revision appear on the item, while a new revision becomes a new BOM, or a new item when form, fit or function changes. The rule is written down so everyone applies it the same way.
• Raw material as a stock item. Bar, sheet or granulate is consumed per part, with a scrap or process loss factor in the BOM so stock stays realistic.
• Sales order links. Work orders created from sales orders keep the customer's order reference, which helps when a buyer asks for proof of what was shipped against which call-off.
• Documents. Drawings and customer specifications are attached to the item or BOM, with access limited where customers impose confidentiality.

For food producers the same structure carries recipes: ingredients, packaging levels and a yield. The general BOM and planning method is on my ERPNext Manufacturing consultant page; this page stays with French production realities.

Job cards, routings and the people on the floor

ERPNext turns each routing operation into a job card. Operators record start and stop times, completed quantities and scrap against a workstation, and the time feeds the operating cost of the work order. That is the data a French workshop needs to know its real cycle times and to stop guessing in quotations.

Design questions I work through:

• Granularity. Recording every set-up and every pause on a lathe is possible but rarely sustained. I agree which operations need exact times and which can use standard times confirmed by the team leader.
• Entry method. Shared terminals, tablets at each workstation or barcode scanning of the job card number. French-language screens come from community translations, which a native speaker on your team reviews before rollout.
• Multi-skilled staff. Operators who move between machines during a shift need job cards that are easy to switch.

Recording working time per operator is personal data and can touch on monitoring of employees. In a French company the social and economic committee, where one exists, may expect to be informed or consulted before such a system starts, and your data protection contact should review purposes and retention. I prepare a plain description of what is recorded, who sees it and which reports exist, so management can lead that conversation. The legal assessment stays with your advisors.

Sending parts out for heat treatment, plating or co-packing

French workshops depend on outside specialists: heat treatment, anodizing, plating, painting, or for food producers a co-packer that fills or wraps. These steps are where stock and cost often go wrong, because material leaves the building and comes back changed.

ERPNext has a dedicated subcontracting flow. You raise a subcontracting order to the supplier for the finished or semi-finished item, transfer the supplied material to a supplier warehouse, then record a subcontracting receipt that consumes that material and brings the treated parts back into stock. The supplier's charge is costed into the received item.

What I check during design:

• whether the treated part is a separate item, so stock before and after treatment is never confused
• how partial returns and parts rejected by the treater are recorded
• how the treatment certificate from the subcontractor is attached to the receipt, so it travels with the batch
• whether a subcontracted step sits in the middle of a routing, which needs a clear split between work orders before and after it

I test the flow with a real treater's paperwork, including a return with fewer parts than were sent. Your purchasing team then sees open quantities at each subcontractor in one report rather than in a spreadsheet kept by the shop manager.

Traceability, inspections and customer audits

Aerospace, automotive and food customers in France tend to audit their suppliers, and the first question is usually a trace: from this delivered batch, which material lot, which operations, which inspections and which operators? ERPNext supports batch and serial numbers on stock items and keeps the link through work orders, subcontracting receipts and deliveries.

To make that trace reliable I set up:

• Batch policy. Which items carry batches, how numbers are generated, and whether the supplier's lot number is stored on the incoming batch.
• Quality inspection templates. Parameters with acceptance criteria for receipt, in-process and final inspection. Numeric readings can be checked against minimum and maximum values.
• Non-conforming stock. A quarantine warehouse so rejected or doubtful material cannot be picked by mistake.
• Expiry and shelf life for food items, so batches nearing their date are visible.

As a go-live condition, the team performs a mock recall, starting from one raw material lot and listing every delivery it reached, then reversing the trace from a customer complaint. If a customer standard asks for statistical process control, gauge management or formal batch records, ERPNext can hold the results but a specialist quality tool may serve better. The ERPNext consultant France page covers the wider platform decision.

Costing, specialist tools and who supports the system

ERPNext values production from the BOM's material cost, workstation operating costs and any subcontracting charges, using the stock valuation method you choose. For a French workshop the useful comparison is quoted cost versus actual cost per order, so job card times and scrap must be recorded honestly. I agree with finance how overheads are spread through workstation hourly rates and how variances are reviewed each month.

Where ERPNext is strong: order-driven discrete production, multi-level BOMs, subcontracting, batch traceability and a single database from quotation to invoice. Where a specialist fits better:

• finite capacity scheduling across many machines with frequent changeovers
• machine data collection directly from controllers, which belongs in an MES
• process manufacturing with complex formulation and regulated batch records
• engineering change management across large product structures

Support is the last decision. An internal developer knows the plant but may leave; a French service firm brings continuity; a remote team costs differently and needs clear specifications. I write the support requirement with any of them and review their work against it. I am not a Frappe partner and take no fees from implementers. If the fit is weak, Odoo Manufacturing in France or a dedicated industrial ERP deserves a look. The France hub describes remote collaboration, and ERP consultant France sets out how platforms are scored.