The Price Discrepancy Report will show you when you were invoiced at a different price other than your contract pricing.
You will want to navigate to Reports > Purchasing > Price Discrepancy
You can run this report by each Distribution Center. You can also select a specific date range by selecting the starting and ending bid file dates.
Each item that has a discrepancy will be included in the report and will show an entry for each discrepancy occurrence.
The report also displays the Bid File Price, the Contract Price, the difference between the two, and the date the discrepancy occurred.
The Contract Prices can be imported by navigating to Maintenance > Product > Contract Price Import
By selecting Download Template you will be able to generate a template to use for importing your contract prices.
To upload the file, select Choose File and then Upload.