SBTi V2 Transition Plans: A Guide to Supplier Evidence

Understanding the New SBTi V2 Transition Plans

The Science Based Targets initiative (SBTi) has released its Corporate Net-Zero Standard V2.0, marking a significant evolution in corporate climate action. This updated standard moves beyond target setting alone, placing a much stronger emphasis on credible, evidence-backed implementation. For sustainability and procurement leaders, this means the era of simply declaring a net-zero ambition is over. Now, the focus is on demonstrating a clear, actionable pathway to get there. At the heart of this shift are the requirements for detailed sbti v2 transition plans that prove your organisation is not just aiming for a target, but actively working towards it.

This new version, detailed in the official SBTi Corporate Net-Zero Standard, requires companies to show their work. It’s no longer enough to set near-term (5-10 year) and long-term targets. Organisations must now provide a clear narrative and supporting evidence on how these targets will be met across Scopes 1, 2, and 3. This includes governance structures, financial planning, and operational changes. The core message is clear: ambition must be paired with a transparent and verifiable strategy. For most companies, the biggest challenge and opportunity within their sbti v2 transition plans will lie in tackling the supply chain.

From Ambition to Verifiable Action

The previous standards allowed for a degree of separation between target setting and the day-to-day operational strategy. Version 2.0 closes that gap. It mandates that companies not only calculate their emissions inventory accurately but also implement strategies to actively reduce them. This involves a deeper integration of climate goals into core business functions, especially procurement. Companies are expected to use all available levers to implement their targets, including operational improvements, procurement choices, and, most critically, supplier engagement. This requirement transforms the transition plan from a static document into a dynamic management tool for decarbonisation.

Why Scope 3 is Central to Your SBTi v2 Transition Plans

For the majority of organisations, Scope 3 emissions, those originating from the value chain, represent the largest portion of their carbon footprint. The SBTi V2.0 standard recognises this reality by placing a heavy emphasis on comprehensive Scope 3 target setting and action. According to criterion CNZS-C14, companies must set near-term Scope 3 targets that cover their most significant emissions categories. This puts supplier emissions squarely in the spotlight.

Your suppliers' emissions are your Scope 3 emissions. Therefore, a credible decarbonisation strategy is impossible without their active participation. The updated standard implicitly calls for a more sophisticated approach to supplier engagement. Sending an annual survey to your top 50 suppliers is no longer sufficient. Effective sbti v2 transition plans require a scalable, data-driven programme that engages suppliers, collects primary data, and tracks their decarbonisation progress over time. It’s about moving from a passive data collection exercise to an active collaboration for mutual reduction. This is where the true work of decarbonisation happens, and it’s what auditors and stakeholders will be looking for as proof of a serious commitment.

Building an Evidence-Based Supplier Engagement Strategy

To meet the heightened requirements of the SBTi V2.0 standard, your supplier engagement strategy needs to be robust, scalable, and built on a foundation of credible data. The goal is to create an evidence pack that not only satisfies validation criteria but also empowers your procurement teams to make climate-conscious decisions. A successful strategy is built on several key pillars.

Your transition plan is only as strong as the data that underpins it. Moving from industry averages to supplier-specific data is the first step toward building a credible, audit-ready Scope 3 inventory.

Here are the essential components for a modern supplier engagement programme designed for the new era of climate accountability:

• Prioritise Primary Data Over Averages: While spend-based estimates and industry averages have a role in initial hotspotting, credible sbti v2 transition plans depend on actual data from your suppliers. This means collecting primary data on their emissions, targets, and reduction initiatives. This provides the granular, verifiable evidence needed for accurate reporting and effective decision-making.
• Segment and Focus Your Efforts: Engaging every supplier in your value chain with the same level of intensity is impractical. Start by identifying your emissions hotspots, focusing on the suppliers that contribute most significantly to your Scope 3 footprint. Tailor your engagement approach based on supplier size, sector, and decarbonisation maturity.
• Enable and Empower, Don't Just Demand: Many suppliers, particularly small and medium-sized enterprises, may lack the resources or expertise to measure and manage their emissions. An effective strategy provides them with support, resources, and benchmarks. By helping them understand their performance relative to their peers, you can motivate action and foster a collaborative partnership.
• Establish Continuous Tracking and Feedback: Decarbonisation is not a one-time event. Your strategy should involve continuous data collection and progress tracking. This allows you to monitor performance against targets, identify suppliers who are leading or lagging, and adjust your engagement strategy accordingly. It creates a dynamic feedback loop that drives ongoing improvement across the value chain.

How Technology Underpins Credible Decarbonisation Journeys

Manually managing the data collection, verification, and analysis required for robust sbti v2 transition plans is an immense challenge. Chasing thousands of suppliers via email, reconciling data from inconsistent spreadsheets, and producing audit-ready reports can consume entire teams for months. This is where technology becomes an essential enabler, not just a nice-to-have.

A dedicated platform for Scope 3 data and decarbonisation can automate and streamline the entire process. It provides a central hub for all your supplier emissions data, creating a single source of truth with clear provenance and version history. This eliminates the chaos of scattered files and conflicting information.

Modern platforms help you:

1. Engage at Scale: Automate the process of collecting primary data from tens of thousands of suppliers with features like localised surveys, automated reminders, and built-in quality assurance. This dramatically increases response rates and the quality of the data you receive.
2. Normalise and Verify Data: Consolidate supplier emissions information from all sources, standardise it for comparability, and flag anomalies. This ensures your data is reliable and ready for analysis and reporting.
3. Generate Decision-Ready Outputs: Instantly identify emissions hotspots, drill down into specific categories or suppliers, and create board-ready reports and evidence packs. This frees up your team to focus on strategic action rather than manual data manipulation.
4. Forecast and Plan: Visualise your aggregated decarbonisation pathway against your SBTi targets. By modelling different scenarios, you can understand the impact of various supplier initiatives and make informed decisions before you even issue a purchase order.

Ultimately, the right technology lightens the administrative load, giving your team the time and the trusted data they need to build and execute a credible decarbonisation strategy. It transforms the challenge of creating effective sbti v2 transition plans into a manageable, strategic opportunity to build a more resilient and sustainable supply chain.