Get suppliers to respond. Improve Scope 3 data quality over time. Build a repeatable outreach and accountability system (not a one-time email blast).
Most Scope 3 programs fail for the same reason:
Supplier engagement is how you move from:
Proxy estimates → Activity data → Supplier-specific data
It's also how you build long-term leverage: contract language, renewal moments, QBR expectations, and standardized vendor requirements.
Supplier engagement is a repeatable campaign that does four things:
Suppliers that matter (by spend coverage, not supplier count).
For minimal viable data (in formats suppliers can actually provide).
Responses and data quality (measured vs estimated vs proxy).
Requirements into renewals and vendor governance.
The goal is not "perfect data this month."
The goal is a program that gets more accurate every quarter.
If you are new, do this in order:
Build a Tier A supplier list that covers ~60–80% of in-scope spend, then run one outreach wave with:
That single wave creates momentum and real coverage improvement. Start with the Supplier Engagement Starter Pack.
A complete campaign motion: prioritize → ask → track → escalate → improve.
60 min setup + ongoing cadenceRun effective quarterly business reviews with vendors - scorecards, templates, and meeting agendas.
Standardize vendor asks without vendor revolt: minimum requirements, escalation, and reusable templates.
A practical clause menu to support data readiness, invoicing controls, and verification (not legal advice).
Get a credible shortlist fast: top categories + top suppliers + a 90-day plan.
Request Scope 3 inputs without vendor revolt: start low-friction, track responses, and improve over time.
Prepare for review/assurance with evidence, controls, sampling discipline, and honest limitations (not audit advice).
These templates exist inside the resources above; pull them into your Template Vault:
Pick the next collection based on where you are:
v1.0 (2026-01): Latest release