Sharing sustainability data with retail partners: a practical guide
Retailers increasingly ask brands for material, origin and certification data per product. What they need, how to structure it and how to keep claims consistent across channels.
KEY TAKEAWAYS Summary by the editors
- Retail partners need structured, product-level sustainability data to populate product pages, filters and compliance records, not brochures or PDFs.
- The core fields are composition, certifications with evidence, origin of key processing steps, care and repair information and, where available, durability data.
- EU rules on environmental claims applying from 27 September 2026 mean retailers will demand evidence for any sustainability attribute they display.
- The upcoming Digital Product Passport for textiles is expected to formalise much of this data exchange.
- A single, validated source of sustainability data, shared through the same channels as other product data, prevents inconsistent claims.
A buyer's product data template used to ask for style number, colour, sizes, prices and images. Now it often includes columns for organic content, certification numbers, country of manufacture of each processing step and recyclability. Brands that answer with a sustainability report PDF quickly learn that retailers need something else: structured data, per product, that their systems can use and their legal teams can defend.
Why do retailers want sustainability data?
- Product pages and filters: e-commerce sites display material and certification attributes and let shoppers filter by them.
- Compliance: under Directive (EU) 2024/825, applying from 27 September 2026, retailers making environmental claims to consumers must avoid generic claims and unsupported labels.
- Reporting: many retailers report on the share of products meeting their own criteria or targets.
- Regulation ahead: the Digital Product Passport under the Ecodesign for Sustainable Products Regulation is expected to require information to be accessible at online points of sale.
- Customer questions: store staff and customer service need reliable answers.
Different partners ask in different ways. Large department stores and online platforms often have detailed templates and validation rules, while smaller independent retailers may simply need clear, accurate information for their staff and websites. A brand's data set should be broad enough to serve the most demanding partner, with simpler views generated from the same source for everyone else.
Which data fields matter most?
| Field | Level | Evidence to hold |
|---|---|---|
| Fibre composition | Variant, including main components | Supplier declarations, test reports |
| Certified content | Variant; which component and percentage | Certificate number, scope, transaction certificates |
| Origin of processing steps | Style or batch | Supplier and site records |
| Care and repair information | Style | Care label data, repair guidance |
| Durability or test results | Style or fabric | Lab test reports |
| Packaging information | Style or shipment | Packaging specifications |
Retailers increasingly prefer specific, verifiable attributes over general statements. A stated share of certified organic cotton, backed by a certificate, is a usable data point; 'part of our conscious range' is not.
How should brands structure and share the data?
- Define a data model: agree internally which attributes you maintain, at which level, with which allowed values.
- Keep it with product master data: sustainability attributes should live in the same system as composition, sizes and prices, not in a separate file.
- Assign ownership: sourcing, sustainability and product teams each own specific fields and approve changes.
- Attach evidence: link certificates and test reports to the attributes they support, with expiry dates.
- Map to partner templates: translate your data model into each key retailer's format, ideally automatically.
- Share through the usual channels: deliver sustainability data together with other product information in order platforms, data feeds or integrations.
Use controlled values wherever possible. Free-text fields invite inconsistent spelling, marketing phrases and ambiguous statements. Pick lists for certifications, standard country codes for origin and fixed formats for composition make the data easier to validate internally and easier for retailers to map into their own attributes.
What are common mistakes?
The first is supplying data at the wrong level: a certificate held for one fabric applied to a whole style or collection. The second is out-of-date evidence, such as expired certificates still referenced in retailer systems. The third is marketing language entering data fields, where retailers then publish it as an attribute. The fourth is manual, one-off answers to each retailer's spreadsheet, which multiply effort and errors every season.
Timing is a further issue. Sustainability data is often finalised late in development, after line sheets and order platforms are already live. Retailers then receive incomplete attributes at order time and updates later, if at all. Setting a data deadline that aligns with the start of the selling period, and flagging missing fields clearly rather than leaving them blank, improves quality and trust.
How does the Digital Product Passport change the picture?
The Digital Product Passport for textiles is expected to include product identification, fibre composition, care and repair information, end-of-life information, origin information and the identification of economic operators. As of autumn 2026, the textile delegated act defining exact requirements has not been adopted; the Commission has indicated a planned adoption around the end of 2027. Brands should check the latest official guidance and seek legal advice on their specific obligations.
Whatever the final details, the direction matches what retailers already ask for. Brands that build a clean, product-level sustainability data set now can serve retail partners today and adapt it to passport requirements later, rather than starting from scratch when the rules apply.
Frequently asked questions
What sustainability data do retailers ask for most often?
Fibre composition, certified content with certificate details, origin of manufacturing steps and care information are the most common. Requirements vary by retailer, so it pays to maintain a broad, structured data set.
Can brands share a sustainability report instead of product data?
A report helps explain strategy, but retailers need structured, product-level data for their systems and claims. Reports cannot be used to populate product pages or filters.
Who is responsible if a retailer publishes an incorrect claim from brand data?
Responsibility depends on national law and contracts, and both parties may be exposed. Brands should ensure supplied data is accurate and evidenced, and agree in contracts how sustainability information is used.
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