The ability to apply a unique Internal Reference No [IRN] to supplier invoices allows for methodical, efficient and easily retrievable document storage. The option to have the IRN automatically OR manually generated would be preferred. For example, an IRN may be of the format YYMM/NNN - this numbering allows for filing of supplier invoices in chronological (monthly) order even when supplier invoices are received late. The provision of a field to record an IRN would be of great benefit and support good record keeping and a robust audit trail
The ability to apply a unique Internal Reference No [IRN] to supplier invoices allows for methodical, efficient and easily retrievable document storage. The option to have the IRN automatically OR manually generated would be preferred. For example, an IRN may be of the format YYMM/NNN - this numbering allows for filing of supplier invoices in chronological (monthly) order even when supplier invoices are received late. The provision of a field to record an IRN would be of great benefit and support good record keeping and a robust audit trail