With good practice for management with suppliers, it is recommended to public administrations that electronic invoices include an indicator of service or supply.
In this way, in particular, in the case of entities that are part of the administrative public sector, and as they usually work with file management, it is recommended to include the file number in the “FileReference” element of the invoice (the same for all the detail lines of the same invoice) . Facturae / Invoices / Invoice / Items / InvoiceLine / FileReference
For the other entities, it is also recommended that they use the file number (FileReference) in order to have a common approach throughout the public sector, although the particular case law of each entity may suggest using other fields such as the order (ReceiverTransactionReference) and / or delivery note (DeliveryNoteNumber).
These indications are those given by the Generalitat de Catalunya to its public sector and suppliers, and are not mandatory for local administrations. However, these are recommended practices and, if they are extended to most Catalan public administrations, they can facilitate the task that suppliers have to do, and make it easier for internal invoices to be routed to corresponding departments of each administration.
We recommend reading one collection of FAQs prepared by the AOC Consortium on General Invoice Entry Points e.FACT and FACE
