Procurement Workflow vs. Invoice Verification
Field Materials automates how you order and receive materials. CheckIT verifies that what you were invoiced matches what you contracted for.
Different jobs. Different ledger lines. Often both.
Quick verdict
What Field Materials AI does
Field Materials is an AI-native procurement platform for self-performing GCs and specialty trades — mechanical, electrical, civil, concrete, framing, drywall. It runs the full chain: RFQs to vendors, AI-generated POs, mobile capture of packing slips, AP automation with a conditional 3-way match, inventory tracking across warehouse and vans, prefab BOM workflows from BIM, and a February 2026 Pricing Intelligence module that benchmarks materials against historical and network pricing.
- RFQ workflow — multi-vendor quotes, AI-compared, converted to itemized POs
- Mobile delivery capture — field team photographs packing slips, AI matches to PO
- Conditional 3-way match — PO ↔ delivery ↔ invoice, posts approved to ERP
- Pricing Intelligence + Prefab modules — material benchmarking and BIM-driven BOMs
Field Materials is widely regarded as best-in-class on AI-native construction procurement, with $1.3B+ cumulative purchase volume across 100+ contractors and 17,000+ projects.
What CheckIT Invoice does
CheckIT Invoice compares every line of every invoice against the contract, quote, rate sheet, or rolling 12-month historical baseline. Upload a contract baseline and an invoice as PDFs and CheckIT returns an explainable, dollar-quantified, severity-ranked report telling you which lines are wrong, why, and by how much. No ERP. No procurement workflow. No field-team rollout. It works on any invoice — including subs, T&M tickets, and vendor invoices that never touched a procurement system.
- Line-item verification against contract, quote, rate sheet, or 12-month historical
- Explainable dollar delta per line, severity-ranked, audit-ready
- Works on any invoice — including subs and channels FM never touched
- 75% less review time per document. No ERP. No implementation project.
Pilots point to $50K–$150K in annual recovered margin — without an integration project or procurement workflow rollout. Extrapolated from active pilot data. Results vary by invoice volume and contract complexity.
Feature comparison
Field Materials matches POs. CheckIT verifies the contract.
Field Materials' 3-way match is a real feature, and when the workflow is fully adopted it works. The catch is that the match is conditional. For Field Materials to verify an invoice, three things have to be true: the PO had to be created in Field Materials, the delivery slip had to be captured by your field team in Field Materials, and your ERP has to write material receipts back to Field Materials. A 2026 Capterra reviewer flagged the third condition directly on Viewpoint Vista — material receipts do not yet push back, “though Field Materials is working to resolve this.”
Our crews capture packing slips. The POs flow through. But when the original PO was wrong, the 3-way match was confidently wrong too. We still had a person opening the contract to check the math.
Heavy Civil GC, $75–100M revenue
CheckIT asks a different question entirely. Not “does the invoice match the PO” but “does the invoice match the contract.” The contract baseline — the quote, the rate sheet, the 12-month historical — is what the contractor and the vendor actually agreed to. CheckIT compares every line against that baseline and returns a dollar-by-dollar, severity-ranked explanation. No PO requirement. No delivery-slip requirement. No ERP integration to wait on.
Use Field Materials if you need the full procurement chain in one AI-native system.
If your trade business runs on RFQs to a vendor network, POs flowing through your ERP, and field teams photographing every packing slip, Field Materials is purpose-built for that workflow — and especially strong for mechanical, electrical, civil, and concrete subs. Their AI-generated POs, mobile delivery capture, and new Pricing Intelligence module are widely regarded as best-in-class on AI-native procurement.
Use CheckIT if you need every invoice line verified against the contract — regardless of how it arrived.
If your invoices come from subs, vendors, T&M tickets, or any channel that never touched a procurement workflow, CheckIT verifies line-by-line against the contract baseline with no PO requirement, no field capture, and no ERP integration. For PMs, controllers, and CFOs who need to defend the number on document one — not after a six-month workflow rollout — CheckIT delivers an explainable, audit-ready report in minutes.
The cost of not verifying
Across the trades, 39% of construction invoices contain an error.
As a share of invoice value — quietly compounding across every job.
Minutes per document instead of the better part of an hour.
Extrapolated from active pilot data. Results vary by invoice volume and contract complexity.
CheckIT vs. Field Materials AI — common questions
No — CheckIT is not a procurement workflow tool and doesn't replace Field Materials. Field Materials runs RFQs, POs, delivery capture, inventory, and prefab; CheckIT verifies invoice lines against the contract baseline regardless of how the invoice arrived. They sit at different stages of the same ledger and many contractors will benefit from running both.
No. CheckIT works on any invoice PDF and any contract, quote, or rate-sheet PDF — no ERP, no procurement workflow, no field-team rollout, and no implementation project. Upload two documents and CheckIT returns a line-by-line, severity-ranked verification report in minutes. That posture is the structural opposite of Field Materials' 3-way match, which depends on FM-generated POs and bi-directional ERP write-back.
Field Materials' 3-way match checks an invoice against the PO and the delivery slip — both of which had to be created inside Field Materials. CheckIT compares each invoice line against the underlying contract baseline (or rate sheet, or 12-month historical). If the original PO had the wrong price or quantity, FM's match confirms the wrong number; CheckIT catches it. Different question, different answer, different layer of the ledger.
Yes — and many contractors will. Field Materials handles procurement: RFQs, POs, delivery capture, AP routing. CheckIT handles verification: every invoice line against the contract baseline, including invoices from subs, T&M tickets, and vendors that never touched a procurement workflow. The two are complementary: FM controls the document chain, CheckIT defends the dollar amounts.
CheckIT is priced per document or per engagement with no ERP integration, no implementation fee, and no field-team rollout — the first invoice you upload delivers ROI. Field Materials is quote-based and demo-gated, with no published pricing; value lands only after the workflow is adopted and ERP write-back is configured. The pricing models reflect the architectural difference: CheckIT charges for verification output; Field Materials charges for workflow access.
Compare CheckIT to other tools
See CheckIT Invoice run against one of your invoices.
Upload one invoice and a contract or rate sheet — CheckIT returns the line-by-line dollar delta in minutes.
No ERP integration required. No procurement workflow. No credit card. No sales call to start.