How to Collect Supplier Data for DPP Compliance
The hardest part of DPP compliance isn't the technology — it's getting accurate, structured data from your manufacturers. Here's a practical process for collecting it.
You can have the best DPP system in the world. If your supplier data is wrong, incomplete, or months out of date, your DPP is worthless — and potentially a compliance liability.
Supplier data collection is the unglamorous work that determines whether your DPP programme succeeds. Here's a process that actually works.
Start With Your Top 20 Suppliers
Don't try to collect data from your entire supply chain at once. Prioritise:
- Manufacturers that produce your highest-volume styles
- Suppliers of materials you use across multiple styles
- Any supplier whose products you currently certify or make sustainability claims about
Getting accurate, structured data from 20 suppliers covers the vast majority of your DPP needs. You can expand the programme as you go.
The Data Template Approach
The easiest way to collect supplier data consistently is to send a standardised template. This does two things:
- It tells suppliers exactly what you need (no ambiguity)
- It makes your data collection consistent across suppliers
A basic DPP supplier data template includes:
SUPPLIER INFORMATION
- Legal entity name:
- Factory address:
- Country of production:
- Factory certifications: [name, number, issuing body, expiry date]
MATERIAL INFORMATION (per material type used for your brand)
- Material name:
- Fibre composition: [e.g. 80% organic cotton, 20% recycled polyester]
- Country of material origin:
- Material certifications: [name, number, issuing body, expiry date]Send this as a simple spreadsheet or form. Most suppliers can complete this in under an hour.
How to Frame the Request
Use regulatory framing, not favour-asking. This is accurate and typically gets a faster response:
"As you may know, the EU's ESPR regulation is introducing Digital Product Passport requirements for garments sold in the EU market. We need to collect specific data about materials and production for all products we sell in Europe. I've attached a data template — can you complete this for the products you supply to us? We'll need this by [date]."
Most established garment manufacturers are already receiving DPP data requests from multiple brands. It's not a novel ask.
The Tier-2 Problem
The hardest data to collect is country of material origin — because it requires your manufacturer to get data from their fabric and trim suppliers.
Options when a manufacturer won't or can't provide tier-2 origin data:
-
Certificate of origin — a document from a trade authority (or customs broker) certifying where the material was produced. Doesn't reveal the supplier relationship but validates the data.
-
Mill test reports — laboratory analysis of the fabric that includes the weave structure and composition. Some mills include origin information.
-
OEKO-TEX or GOTS certification — if the material is certified, the certification scope often includes origin. The certificate issuer can often provide this data.
-
Allowable uncertainty — the DPP schema may allow "country of material origin: Turkey" without requiring you to name the specific mill. Check the delegated act when finalised.
Building a Living System
DPP compliance isn't a one-time data collection exercise. Suppliers change. Materials change. Certifications expire.
You need a process for:
- Annual data refresh — resend templates to suppliers once a year to update any changes
- Certification expiry tracking — know when certifications expire before they do; don't rely on the supplier to notify you
- New product onboarding — integrate data collection into your new product development process so DPP data is collected when the product is being developed, not retrofitted at launch
This is why a spreadsheet eventually breaks down for brands with more than ~50 SKUs. The refresh and expiry tracking problem requires a system.
What Good Looks Like
A well-run supplier data programme produces:
- Fibre composition data verified against mill test reports for all major fabrics
- Country of production for all manufacturing partners (this is easy)
- Country of material origin for 80%+ of material volume (100% is aspirational; 80% is achievable)
- All certifications documented with current certificates, numbers, and expiry dates
- A clear process for updating data when anything changes
If you can get here, generating DPP records is mostly a data formatting and systems exercise. The hard work is upstream.
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