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MetricSupplier engagement for Scope 3 primary GHG emissions data

Suppliers and partners requested to provide primary GHG emissions data

Measurement answer

What this metric measures

Optional structured reporting of the number and percentage of suppliers and other partners that received a request from the reporting company to provide primary GHG emissions data during the reporting period.

Specification

Metric specification

Result format
Structured table
Unit
count and percent — source-defined reporting unit
Reporting basis
Reporting period covered by the optional Scope 3 disclosure
Aggregation
Number and percentage of suppliers and other partners receiving a request to provide primary GHG emissions data
Pillar
Environmental
Topic
Supplier engagement for Scope 3 primary GHG emissions data
Controlled domain
Supply chain and value chain
Entity type
Metric

Reporting boundary

Suppliers and other partners included by the reporting company in its optional supplier/partner engagement reporting

Verified source occurrences

Framework coverage

This is one canonical metric. The bindings below show every verified framework occurrence without creating duplicate metric pages. Edition, disclosure, role, and relationship remain source-specific.

  • Measurement Authority

    GHG Protocol

    Source evidence
    Publisher
    GHG Protocol
    Edition
    2011 publication
    Requirement
    Not Specified
    Relationship
    Defines Measurement
    Mapping outcome
    Direct Evidence
    Source locator
    PDF page 123, Chapter 11, “Optional reporting: Information on supplier/partner engagement and performance”
    Open official framework source
  • Measurement Authority

    GHG Protocol

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    Publisher
    GHG Protocol
    Edition
    2011 publication
    Requirement
    Not Specified
    Relationship
    Maps Source Identity
    Mapping outcome
    Published
    Source locator
    PDF page 123, Chapter 11, “Optional reporting: Information on supplier/partner engagement and performance”
    Open official framework source

Value structure

Dimensions and units

Unit
count and percent — source-defined reporting unit
Reporting basis
Reporting period covered by the optional Scope 3 disclosure

Unit meaning: Values use count and percent under the disclosed Scope 3 method, period and boundary.

Table fields and units

  • counterparty type
  • engagement measure
  • number of suppliers or partners
  • percentage of suppliers or partners
  • reporting period
  • population and denominator basis

Published dimensions

  • counterparty type: supplier or other partner
  • engagement status: received request for primary GHG emissions data

Disclosure method

Formula information

Status
Not applicable
Formula type
Structured Disclosure

Disclosure form

No single formula

Report the source-defined result with its stated fields and method disclosures. The source expressly identifies the number and percentage of suppliers and partners receiving a request for primary GHG emissions data as optional reporting information. It is a distinct supplier-engagement outcome and is not equivalent to the percentage of Scope 3 emissions calculated using supplier primary data.

Verified sources

Evidence and status sources

Sustopedia checked each record-specific claim directly against primary publisher material. Labels distinguish current measurement authority from future compatibility and corroborative, legal, edition, or method status context. Corroborative evidence can support a stated limitation but cannot establish the core measurement by itself.

Measurement evidence

  • Measurement evidenceChecked 26 August 2026

    Corporate Value Chain (Scope 3) Accounting and Reporting Standard

    Publisher
    GHG Protocol
    Edition
    2011 publication
    Locator
    PDF page 123, Chapter 11, “Optional reporting: Information on supplier/partner engagement and performance”

    Supports: The official GHG Protocol source supports the identity, boundary and method basis of “Suppliers and partners requested to provide primary GHG emissions data”.

    Open official source

Use with context

Interpretation boundaries

Method disclosures required

Source-edition basis: Corporate Value Chain (Scope 3) Accounting and Reporting Standard, 2011 publication.

  • Disclose that the measure is optional supplier/partner engagement reporting under the Scope 3 Standard.
  • State the population of suppliers and other partners covered by the reported count and percentage.
  • Describe the reporting company's basis for calculating the reported percentage, including the denominator used.

Record-specific limitations

  • This is identified as optional reporting in the Scope 3 Standard.
  • The source supports a number and percentage of suppliers and partners receiving a request, but does not specify the denominator calculation or require that it be based on emissions, supplier count, or spend.
  • This engagement measure does not itself quantify Scope 3 emissions or the share of Scope 3 emissions supported by primary supplier data.

Interpret this metric with the stated reporting boundary, period convention, value shape, and unit. Results prepared with different boundaries or conventions may not be directly comparable.

Measurement evidence supports the core record-specific claims described above. Corroborative evidence can support limitations, while compatibility and status sources provide their separately labelled context. None of these cards by itself determines an organisation's legal applicability, filing readiness, assurance status, or compliance conclusion.