3759119 - Vendor credit memo posts despite slight quantity difference compared to Return to Vendor

When checking a credit memo value, I notice that it allows the posting of a vendor credit memo from SAP Ariba Buying and Invoicing with a quantity slightly different from the returned quantity on Return to Vendor (RTV).

SAP Integration Suite, managed gateway for spend management and SAP Business Network

SAP Ariba Buying and Invoicing

vendor credit memo, quantity difference, rtv, return to vendor, liv, logistics invoice verification, cumulative check, rounding variance, decimal precision, tolerance, miro, goods receipt vs invoice, slight over-credit perception, invoice quantity validation, three decimal places , KBA , BNS-ARI-CI-AN-INV , Managed Gateway for Business Network - Invoice , Problem