Scope 3 Supplier Engagement that builds your commercial case.

No. Disclosure frameworks, including IFRS S2, accept spend-based estimates and industry averages for Scope 3 reporting. They do not mandate supplier-specific data. IFRS S2 explicitly allows companies to use "reasonable and supportable information available ... without undue cost or effort".

So why do companies collect primary data from suppliers? The commercial case is different. Procurement risk creates a clear need for primary data specifically when (1) the requirement is at product or SKU level, (2) the buyer explicitly demands supplier-reported actuals, or (3) to compete in a low-carbon premium tier.

Companies collect primary supplier data because the commercial incentives have moved ahead of the regulatory floor.

Use a supplier engagement platform with structured data campaigns. Terrascope lets you segment suppliers by emissions impact, send tailored collection campaigns with industry-specific templates, and track responses from a single dashboard. Suppliers follow guided workflows to submit data in the right format, reducing back-and-forth.

Terrascope's segmentation tools let you slice your supply chain by emissions impact, data gaps, category, or region, so your first campaign targets the suppliers where better data makes the biggest difference to your footprint accuracy and commercial position. 

Other criteria to consider when prioritising your first supplier cohort to engage: supplier maturity, and supplier control over their own emissions hotspots - for example, if the supplier manufactures or produces the good, or simply distributes it. Read more here.

Start with a fewer number of suppliers that have higher decarbonisation maturity.

Before jumping straight to data requests, run an educational step. Terrascope's experts facilitate short introductory webinars to help suppliers understand why you're asking and what's expected. This significantly improves response rates. 

Once onboarded, Terrascope's guided supplier workflows give each supplier a step-by-step experience: clear instructions, progress tracking, and validation checks that flag errors before submission. Response rates increase when the process is structured and the ask is clear.

A pre-calculated corporate carbon footprint (CCF) is an emissions inventory that a supplier has already measured, covering their Scope 1, 2, and relevant Scope 3 emissions. When a supplier shares a pre-calculated CCF through Terrascope, your team receives a verified, supplier-specific emission profile instead of relying on industry averages for that supplier's contribution to your Scope 3. This is the fastest route to improving your footprint accuracy: the supplier has already done the measurement work, and Terrascope ingests the result directly into your data.

A pre-calculated product carbon footprint (PCF) measures the emissions associated with a specific product, from cradle-to-gate. When a supplier shares a PCF for the product you buy from them, you get emissions data at the level that matters for product-level claims, EPDs, and buyer-specific reporting requirements. Terrascope enables suppliers to calculate PCFs directly on the platform or share existing PCFs, so the data arrives in a structured, validated format ready for use in your own footprint and reporting.

Automated validation checks flag missing fields, outliers, and inconsistencies at the point of submission. Each data point is traceable from the supplier's input through to your corporate footprint, giving auditors and assurance providers a clear line of sight from disclosure value to source data.

The timeline varies by the number of suppliers and complexity of the data ask. Terrascope reduces the collection cycle by structuring the process: segmentation narrows the initial scope, templates standardise the ask, and guided workflows reduce supplier drop-off. Customers typically see initial data flowing within weeks of launching their first campaign.

Yes. Terrascope is PACT-conformant, enabling standardised carbon data exchange between companies and their suppliers. This supports interoperability across value chains where multiple platforms are in use.