Billing identifiers

Billing identifiers use codes to describe what the fields contain. This also specifies how certain invoices or certain invoice lines should be accounted for (bókað?) This information needs to be provided by the buyer, whether that be with the order document or otherwise. Please note that billing references can only be used with the EN/CII standard. Multiple billing identifiers can be used on header level while only one can be used in each line. The first billing identifier on header level will be an invoiced Object Identifier.

Usage example: An insurance company gets an invoice from an auto repair shop, the invoice header contains a "reference identifier" that references the car that was being repaired. This is done using the code ABZ which stands for vehicle licence number. This allows the insurance company to match the invoice with the correct incident report and the specific car that was damaged.

The following is a table of frequently used reference types and codes:

**Billing identifiers**
Reference type and code	Description
Vehicle licence number (ABZ)	Number of the licence issued for a vehicle by an agency of government.
Department number (AMV)	Number assigned to a department within an organization.
Work order (AOV)	Reference number for an order to do work.
Company / place registration number (XA)	Company registration and place as legally required.
Metering point (AVE)	Reference to a metering point.
Meter unit number (MG)	Number identifying a unique meter unit.
Charge card account number (AIU)	Number to identify charge card account.
Phone number (AMV)	A sequence of digits used to call from one telephone line to another in a public telephone network.
Returns notice number (ALQ)	A reference number to a returns notice.
Waybill number (AAM)	Reference number assigned to a waybill.
Firm booking reference number (AXE)	A reference number identifying a previous firm booking.
Shipping unit identification (ACC)	Identifying marks on the outermost unit that is used to transport merchandise.