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The Supply Chain section of the NCZ Portal lets you build a picture of your Scope 3 emissions from the suppliers and partners your organisation works with. You can record your suppliers, import emissions data from spreadsheet files, upload supporting documents, and view your entire supply chain emissions contribution in one place. Platinum-level certification requires an active supply chain compliance programme, making this section central to reaching and maintaining that level.

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What the supply chain feature covers

The supply chain feature has two main components:
  • Suppliers — a list of the companies in your supply chain, including their contact details and relevant spend or industry data
  • Documents — Excel spreadsheet uploads that contain your supply chain emissions data or supporting evidence
Both are accessible from the Supply Chain page via tabs at the top of the view.

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Viewing your suppliers and documents

Navigate to Supply Chain in the left-hand sidebar. The page opens on the Documents tab by default. Switch to the Suppliers tab to see the list of suppliers associated with your account. For each supplier, the table shows:
  • Company name
  • Contact name
  • Email address
  • Phone number
  • Industry category
  • Spend figure (where provided)

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Adding suppliers

You can add suppliers individually through the portal or import them in bulk using a spreadsheet file.

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Import suppliers from a spreadsheet

1

Prepare your spreadsheet

Create an Excel or CSV file with the following columns. The first three are required; the others are optional.
2

Open the import dialog

On the Supply Chain page, click Import data. A dialog appears.
3

Select your file and company

Choose your prepared spreadsheet file. If you manage multiple companies, select the relevant company from the dropdown.
4

Confirm the import

Click Import. The portal validates each row and creates a supplier record for each valid entry. If any rows contain missing or incorrectly formatted data, the import stops and shows you which row caused the error so you can correct it.
All rows in your spreadsheet must have a valid Company Name, Person Name, and Person Email. Email addresses must be in a valid format, and phone numbers (if provided) must be between 7 and 20 characters. A single invalid row will prevent the entire import from completing.

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Delete a supplier

To remove a supplier from the list, select the delete action on the relevant row in the Suppliers table. A confirmation dialog appears before the record is permanently removed.

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Uploading supply chain documents

Supply chain documents are Excel files containing your supply chain emissions data or evidence files. These are separate from your supplier contact list and serve as the primary source of supply chain emissions data for your carbon report.
1

Open the upload dialog

On the Supply Chain page, click Upload document. A dialog appears.
2

Select your file

Choose an Excel file (.xlsx or .xls). Only Excel files are accepted for supply chain documents.
3

Enter a title

Give the document a descriptive title so you can identify it in the documents list.
4

Upload

Click Upload. The file is stored securely and appears in the Documents tab of the Supply Chain page.
Only .xlsx and .xls files are accepted when uploading supply chain documents. CSV files are accepted for supplier imports, but not for document uploads.

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Downloading and viewing supply chain documents

From the Documents tab, each uploaded document has actions to download or view it directly:
  • Download — saves the file to your device in its original Excel format
  • View — opens the document in the portal’s built-in viewer (for supported file types)
To delete a document, use the delete action on the relevant row. You will be asked to confirm before the file is permanently removed.

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How supply chain emissions appear in your footprint

Supply chain data you upload and manage here feeds into your overall Scope 3 emissions calculation. Your NCZ Customer Success Team processes the data in your uploaded documents and incorporates the supplier emissions into your annual carbon footprint report. This gives you a combined view of direct emissions (Scopes 1 and 2) alongside upstream and downstream supplier impacts (Scope 3). For Platinum certification, NCZ requires you to measure a minimum of 10% of supplier emissions and demonstrate increasing supplier engagement year on year.
Reaching out to key suppliers to request their own emissions data directly improves the accuracy of your Scope 3 calculations. Your Customer Success Team can advise on which suppliers to prioritise based on spend and industry.

Certifications

Understand what supply chain engagement is required for Platinum certification.

Locations

Add the locations whose emissions combine with your supply chain data.

Forms and submissions

Submit and manage your direct emissions data collection forms.

NCZ certification programme

Explore Scope 3 requirements and what Platinum certification involves.