How to analyse your supply chain emissions
Last updated: 10 April 2026
Supply Chain Scope 3
The Supply Chain dashboard shows which suppliers contribute the most to your Scope 3 emissions, so you can prioritise engagement and decarbonisation efforts. Access it via Analyse > Supply Chain.
Prerequisites
- Supplier spend or activity data uploaded through the Task Manager or Data Templates
- Accurate supplier names on your transactions (unnamed entries appear under "N/A")
Dashboard Overview
The dashboard shows:
- Total suppliers — The number of unique suppliers in your supply chain
- Total supplier emissions — Combined Scope 3 emissions in tCO₂e
- Supplier ranking table — Every supplier listed with their name, GHG category, sector, emissions (tCO₂e), and percentage of total
Typically, approximately 10% of suppliers generate 80% of Scope 3 emissions. Start your engagement efforts with the highest-emitting suppliers for maximum impact.
Drilling Into a Supplier
Click View Records on any supplier to see every transaction associated with them. This opens a filtered view showing:
- Individual transaction dates and amounts
- The GHG categories the spend was allocated to
- The emission factors applied to each transaction
- The source file each transaction came from
This is useful for verifying that supplier classifications are correct and for preparing supplier engagement conversations with specific data.
Unnamed Suppliers
Entries without a supplier name appear under N/A, separated by GHG category. This typically happens when the source data didn't include a supplier field. To improve data quality, go to the Audit Page and add supplier names to unmatched entries.
Filtering and Export
- Node filter — View suppliers for a specific facility or entity
- Date range — Filter by reporting period
- Supplier search — Search by name to find a specific vendor
- Export — Download the supplier ranking as CSV or Excel
FAQ
Why do some suppliers show zero emissions?
Verify that emission factors are correctly matched to the supplier's transactions in the Audit Page. Zero emissions usually means a missing or failed emission factor assignment.
How do I merge duplicate supplier names?
Variations like "ACME Corp" and "Acme Corporation" appear as separate suppliers. Consolidate them in the Audit Page by editing the supplier name on the relevant transactions.
Can I share the supply chain data with a supplier directly?
Export the data as a spreadsheet and share the relevant portion. You can filter by supplier first so the export only contains their transactions.
How do I move from spend-based to activity-based data for a supplier?
Request primary data from the supplier (e.g., actual energy use, transport distances). Upload this as activity-based data and apply custom emission factors (LCA/EPD) if the supplier provides them.