National Product Catalogue - Business Scenarios and Use Cases v1.0

GST and rounding errors can be the source of legitimate variances in Purchase Orders and Invoices which may require manual intervention. Since one of the benefits of e-Procurement is to minimise the amount of manual intervention required, this document describes procedures that will allow these variances to be processed as automatically as possible. These variances are usually minimal, and the cost of correcting them is far more than the cost of the variance itself. In some extreme cases though, they have created misunderstandings which have damaged the relationship between buyer and seller.

It should be a minor issue unless adequate preparation has not been made.