Additional document references

Some formats support additional document references. Under Additional document references, provide more data references for an invoice. The information is usually taken from a codelist or created by a user. Multiple reference types are supported, such as order numbers, contract references, or building sites locations.

Depending on the Member configuration, free text reference type can be available. In this case, invoices with references that are not from the list of UNCL1553 codes are accepted by Invoice Portal.