Rank real increases
See old cost, new cost, and percentage movement on matched product rows.
Audit supplier price increases before they reach your margins.
Compare the supplier's new price file with your current baseline, surface the rows that changed, and keep a person in control of every update.
Review a supplier updateA smaller pack can hide a larger effective increase.
If a case changes from 24 units to 20, a flat list price is still a unit-cost increase. SupplyDiff compares normalized unit costs and flags pack or unit-of-measure changes separately so they receive human review.
Catch changed buying units
Review cases, packs, eaches, and other unit changes before relying on the headline price.
Keep questionable rows visible
Duplicates, invalid prices, currency differences, and ambiguous matches are not silently accepted.
Turn the file into a focused negotiation list.
Load both versions
Use the current approved list as your baseline and the supplier's latest file as the update.
Filter the exceptions
Focus on price changes, pack/UOM changes, new products, removals, and rows needing attention.
Export your review CSV
Take a documented change set into purchasing review or a supplier negotiation.
Supplier increase review FAQ
Does SupplyDiff decide whether an increase is acceptable?
No. It organizes the evidence and flags exceptions; your purchasing or catalog owner makes the decision.
Will it update prices automatically?
No. SupplyDiff produces a review CSV and never writes directly to an ERP, PIM, store, or supplier system.
Can I use it for recurring monthly price lists?
Yes. Compare the latest approved baseline with each new supplier file and retain the exported review CSV in your own process.
Find the risky rows before approving the file.
The public beta is free and processes files on your device.
Run the free review