Supplier Engagement Portal
Most of your carbon footprint sits in your supply chain — and getting that data out of suppliers is usually a mess of emails, follow-ups, and version-controlled spreadsheets. NetNada turns the whole thing into one workflow: your supplier list builds itself from your emissions data, you ask exactly what you need with ready-made or fully custom forms, and you engage hundreds of suppliers at once. Suppliers respond through a secure magic link — no account, no password, no licence required.
How It Works
NetNada turns supplier engagement into a single, repeatable workflow: find the suppliers that matter, ask exactly what you need, and chase responses without lifting a finger. Here's how a campaign goes from raw spend data to verified supplier disclosures.
Your Supplier List Builds Itself
Every supplier in your emissions data lands in one place automatically. Upload spend data to calculate Scope 3, or a utility bill for Scope 2, and NetNada captures each supplier and surfaces them with their emissions and engagement status. Need a vendor that isn't in your data yet — someone you want to send an RFI to? Add them manually. One screen, every supplier, sorted by emissions so you know who to engage first.
Ask Exactly What You Need
Send a ready-made NetNada template or build your own from scratch. Starters like GHG Disclosure Basic, Logistics & Freight, and Procurement Spend cover the common cases out of the box. Need something specific to your reporting? The form builder is fully customisable — any questions, any field type, plus file uploads for supporting evidence. Save a template once and reuse it forever.
Engage Your Whole Supply Chain at Once
Group suppliers into a campaign and act in bulk. Before anything goes out, NetNada checks its own supplier database and scans public disclosures on the web to see whether a supplier has already reported the data — so you don't waste a request asking for something that already exists. Then track every response live: drafted, sent, in progress, completed, and overdue, with response and completion rates for the whole campaign.
One Click for One Supplier, or a Hundred
Add up to 100 suppliers to a campaign and trigger 100 invitations in a single action. Each email carries a secure link straight to the supplier portal — no account to create, no password to remember. Want a personal touch for a key supplier? Send individually with your own custom message and the same secure link.
Frictionless on the Supplier's Side
Suppliers click the link and land straight on the questionnaire — no login, mobile-friendly, with progress saved as they go. If they've answered a question before, whether for you or another client, NetNada suggests their previous answer so they can reuse it in one tap. Validated responses flow straight back into your Scope 3 calculations, replacing generic industry averages with supplier-specific data.
Why Use Supplier Engagement Portal
Remove the Spreadsheet Bottleneck
Manual supplier engagement via email attachments and spreadsheets breaks down beyond a handful of vendors. The portal centralises all data collection in one place — suppliers know exactly what to provide, and your team gets structured, validated data instead of inconsistent spreadsheet formats.
Your Supplier List Builds Itself
Every supplier already in your emissions data appears automatically, surfaced with their emissions and engagement status and sorted so the highest-impact vendors rise to the top. No manual list-building, no guessing who to engage first — and you can still add vendors who aren't in your data yet.
Don't Ask for Data That Already Exists
Before a campaign goes out, NetNada checks its own supplier database and scans public disclosures on the web to see whether a supplier has already reported what you need. That means fewer redundant requests, less wasted goodwill with your suppliers, and faster coverage of your supply chain.
No Licence Required for Suppliers
Suppliers access the portal for free through a unique invitation link. No accounts to create, no software to install, no training sessions needed. This removes the biggest barrier to supplier participation and dramatically improves response rates compared to asking vendors to adopt new tools.
Engage Hundreds of Suppliers at Once
Group suppliers into a campaign and trigger up to 100 invitations in a single action, with automated, live tracking of every response. Your team can engage the whole supply chain without proportionally increasing headcount — and focus human effort on the strategic relationships that need it.
Less Friction Means More Responses
Suppliers land straight on a mobile-friendly questionnaire, save progress as they go, and reuse answers they've given before in a single tap. Reducing the burden on the supplier's side is the single biggest driver of completion rates — and it means far more suppliers actually respond.
Who Uses Supplier Engagement Portal
Sustainability Teams Managing Scope 3
Responsible for improving Scope 3 data accuracy and meeting reporting requirements. The portal transforms supplier engagement from a manual, time-consuming exercise into a scalable, repeatable programme that delivers measurable data quality improvements each year.
Procurement and Supply Chain Teams
Integrating sustainability into vendor management and selection. The portal provides a structured way to collect emissions data during onboarding, contract renewals, and periodic reviews — embedding carbon performance into existing procurement workflows.
Organisations with SBTi Scope 3 Targets
Companies with validated science-based targets that include Scope 3 must demonstrate improving data quality over time. The portal's systematic approach to supplier engagement moves you from spend-based estimates to supplier-specific primary data, directly supporting SBTi progress reporting.
Large Enterprises with Complex Supply Chains
Organisations with hundreds or thousands of suppliers across multiple categories and geographies need automated, scalable engagement. The portal handles bulk campaigns, varied data requirements by supplier segment, and enterprise-scale response management.
Consultants Supporting Client Programmes
Sustainability consultants managing supplier engagement on behalf of clients use the portal to run professional, branded campaigns. Reusable form templates and multi-client management streamline advisory services for supply chain decarbonisation programmes.
Supplier Engagement Portal Features
Self-Building Supplier List
Every supplier in your emissions data is captured automatically. Upload spend data for Scope 3 or a utility bill for Scope 2, and each vendor appears with their emissions and engagement status, sorted by emissions so you know who to engage first. Add vendors that aren't in your data yet with a single click.
Fully Customisable Form Builder
Send a ready-made NetNada template — GHG Disclosure Basic, Logistics & Freight, or Procurement Spend — or build your own from scratch. Any question, any field type, with file uploads for supporting evidence. Save a template once and reuse it across every campaign.
Campaigns & Bulk Engagement
Group suppliers into campaigns, each with its own dashboard and stats. Add up to 100 suppliers and trigger 100 invitations in a single action, or send individually to a key supplier with your own custom message and the same secure link.
Database & Web Deduplication
Before a request goes out, NetNada checks its own supplier database and scans public disclosures on the web to see whether a supplier has already reported the data you need — so you never waste a request asking for something that already exists.
Secure Magic-Link Supplier Portal
Suppliers access a clean, mobile-friendly portal through a unique secure link — no account to create, no password to remember, and no licence required. Progress is saved automatically so they can complete the questionnaire whenever it suits them.
Previous-Answer Reuse
When a supplier has answered a question before — whether for you or for another client on NetNada — the portal suggests their previous answer so they can reuse it in a single tap. Less repeated effort on the supplier's side means far higher completion rates.
Live Response Tracking
Monitor every engagement as it moves through drafted, sent, in progress, completed, and overdue. Campaign dashboards show response and completion rates, and you can even see how far along an in-progress supplier is — so follow-up goes exactly where it's needed.
Contacts & Focal Point Management
Manage supplier focal points and email contacts in one place through the Contacts area, keeping engagement requests pointed at the right person at each vendor. Designed around the upcoming Global Supplier Directory.
Document Upload and Evidence Management
Suppliers can attach supporting documents alongside their responses: sustainability reports, third-party verification certificates, LCA studies, product carbon footprints, and emissions calculation methodologies — all stored with the submission for audit readiness.
See It in Action
From raw spend data to verified supplier disclosures — here is the supplier engagement workflow inside NetNada.
Real Results from Real Users
See how companies are transforming their sustainability reporting
"We needed to engage over 150 suppliers for our Scope 3 programme but didn't have the team to manage manual outreach. NetNada's portal automated the entire process — personalised invitations, reminders, data validation. Our response rate reached 62% in the first cycle, and the quality scoring helped us prioritise follow-up conversations."
- Achieved 62% supplier response rate in the first engagement cycle
- Moved 35% of Scope 3 data from spend-based to supplier-specific
- Reduced supplier engagement admin time by 80%
"Our suppliers range from large multinationals to small family farms. The portal adapts — detailed questionnaires for large suppliers, simplified versions for smaller ones. Suppliers tell us it's the easiest sustainability data request they've received. That's reflected in our 70% completion rate across 400 vendors."
- 70% completion rate across 400 suppliers of varying sizes
- Collected product-level carbon data from top 50 ingredients suppliers
- Identified three alternative suppliers with 40% lower emissions intensity
"We integrated the supplier portal into our vendor onboarding process. Every new supplier now provides emissions data as part of qualification. It's become a normal part of doing business, not a special sustainability exercise. Our supply chain emissions visibility has improved dramatically in just 12 months."
- Embedded emissions data collection into standard vendor onboarding
- 100% of new suppliers providing emissions data at qualification
- Improved overall Scope 3 data quality from spend-based to supplier-specific
Frequently Asked Questions
Everything you need to know about Supplier Engagement Portal
Related Features
Supplier Emissions Tracker
Analyse collected supplier data, benchmark vendors, calculate supplier-specific emission factors, and plan supply chain decarbonisation strategies.
Learn moreScope 3 Emissions Calculator
Calculate all 15 Scope 3 categories using supplier-specific data collected through the portal alongside spend-based estimates for remaining suppliers.
Learn moreSupply Chain Analysis Dashboard
Visualise supply chain emissions hotspots, track supplier engagement programme progress, and identify the highest-impact decarbonisation opportunities.
Learn moreAI Data Validation
Leverage AI to detect anomalies and inconsistencies in supplier-submitted emissions data, improving data quality before it enters your calculations.
Learn moreGet Started with Supplier Engagement Portal
Collect Primary Emissions Data at Scale
Stop relying on industry averages for your Scope 3. NetNada finds the suppliers that matter, asks exactly the right questions, and brings the answers back to your carbon accounting automatically — no licence fees for your suppliers, no spreadsheet chaos for your team. Launch your first supplier campaign today.