A vendor portal that lets suppliers upload invoices needs to validate those uploads against the corresponding Peppol e-invoice using the GRN as the matching key - without blocking legitimate submissions due to timing or sequencing between the two channels.
The GRN is mapped to a PINT AE reference field at supplier onboarding. A matching engine applies defined tolerance rules - exact match on TRN and invoice number, rounding tolerance on amounts - and sequences portal uploads against Peppol arrival rather than assuming both happen at once.
Designed for a live vendor-portal engagement, this control reduces manual invoice verification for the buyer’s AP team while preventing duplicate or mismatched supplier submissions from slipping through.
Tell us about your ERP and the mandate you fall under — we’ll show you how we’d handle it.