M&S Code of Practice

The M&S Code of Practice (CoP) is the document that defines what an M&S own-brand supplier must do above and beyond the GFSI processor scheme on the site. It is not a single PDF — it is a set of category-specific manuals, integrity clauses, sustainability commitments under Plan A, and the over-arching Field-to-Fork traceability principle. Together they form the de-facto operating standard for any manufacturer wanting M&S Food listings.

M&S is unusual among UK retailers in the depth of its category technical involvement. M&S category technologists are present during product development, sign off specifications at a level of detail that exceeds most other retailers, and revisit specifications periodically as standards evolve. Many M&S suppliers describe the programme as 'audit-equivalent contact every quarter, not once a year'.

M&S Select Farm is the primary-production standard for animal and produce categories. It sits above Red Tractor and, for most animal categories, above RSPCA Assured as well. Welfare, environmental management and integrity expectations exceed both the legal and the Red-Tractor floor. M&S Select Farm membership is by invitation and depends on the farm meeting both the standard and the breed/origin specification M&S sets for the category.

Select Farm sits closely with Plan A — sustainability targets on carbon, water, packaging and biodiversity flow from Plan A through to Select Farm KPIs that the farm must report against. Manufacturers buying Select Farm material inherit and pass through this evidence chain.

M&S expects every own-brand product to be traceable, in one hour, from finished SKU on shelf back to the farm, the fishery or the originating producer. The test is run live during technical visits: 'Show me the chain for this product, now.' The supplier produces the goods-in records, the production batch sheet, the supplier guarantee, the Select Farm or equivalent certificate, and the route from input to shelf.

Plan A — M&S's sustainability programme — has been progressively translated into supplier KPIs since its 2007 launch. Today suppliers are expected to report against and improve on carbon intensity, packaging weight, recyclability, water usage in primary production, and ingredient-sourcing standards (deforestation, palm-oil RSPO certification, soy responsibility, fish certification).

These KPIs feed into category-level reviews and contribute to retention/loss decisions independently of the food-safety audit history. A supplier with a clean BRCGS report but a stagnant Plan A scorecard is at risk over a multi-year horizon.

Integrity at M&S means: the product is what the label says it is, the claim is what the chain can evidence, and nothing in between has been substituted, mis-declared or quietly downgraded. Integrity findings include mis-declared origin, unverified breed or varietal claims, allergen mis-declaration, weight/count deficits, and any case where the chain of custody cannot be evidenced end-to-end.

M&S runs a programme of integrity testing — DNA on meat, isotope on origin claims, residue on pesticide claims, allergen on declaration — that is broader than most retailers operate. Failure of an integrity test triggers immediate technical review and frequently a de-list, even on first occurrence.

• Treating Field-to-Fork as a paperwork exercise rather than an operational drill.
• Buying a claim ingredient (e.g. 'British free-range') and not capturing the verification certificate at goods-in.
• Leaving the Plan A scorecard to year-end rather than tracking continuously.
• Underestimating the breadth of M&S integrity testing.
• Specifications drifting from the M&S signed-off version without a controlled change request.