The best platforms do three things well. They calculate emissions from real activity data instead of financial averages, they produce numbers that hold up under CSRD limited assurance, and they connect to the systems finance and procurement already use. Everything else, dashboards included, is secondary to whether the underlying number is defensible.
Spend-based accounting multiplies what you paid by a generic industry factor. It is fast, but it treats a €1,199 laptop the same as a €1,199 server. Activity-based accounting works from the actual transaction: what was bought, from whom, and that product's documented footprint. The gap is large. A 100-unit laptop purchase can land at roughly three times the emissions under a spend-based factor (around 340 kg CO2e per unit) versus the manufacturer's own lifecycle data (around 119 kg).
That is also why spend-based totals behave oddly. Switch to a cheaper supplier and a spend-based estimate can show emissions falling, even if the new supplier is dirtier, because it tracks price, not carbon. Auditors and procurement teams are learning to look for the activity-based property instead.
Read more about the difference between spend-based and activity-based carbon accounting here: spend-based vs. activity-based carbon accounting
By 2026, activity-based methods and AI enrichment are no longer Bardo's alone. Normative ingests bills of materials, Watershed decomposes supply chains, Greenly blends spend and activity data. So the question is not whether a platform can get granular. It is where the number starts, and how far the traceability holds.
Most platforms start with a survey or a spend category and work toward the transaction. Bardo starts at the transaction. It reads the invoice line, rebuilds the activity behind it, and enriches it with the specific product, the supplier's published LCA where one exists, and the transport or process detail, keeping every step linked to its source. Other platforms answer "what did the invoice say?" Bardo answers "what actually happened, and what proof do we have?" That, plus one consistent methodology across every entity in a group, is what makes the number hold up when someone asks why it changed.
Pick the tool that can survive the hardest question anyone will ask: why did the number change. Spend-based tools answer with an average. Activity-based tools answer with a transaction. The only real test is your own invoices, not a vendor demo.
Stegra, Tele2, First Camp, and many more already trace their Scope 3 back to real suppliers and products with Bardo. Run a sample of your own data through the same methodology and see what your footprint looks like when every ton reconciles to a transaction.
Book a walkthrough with your own invoices here!