It would be nice if vendors could send me a consolidated e-invoice, for example, for everything I ordered last month, and I could match that invoice with my multiple purchase orders on the Purchase Order Matching page in the new e-documents module.

It is a common scenario in many industries and is also possible paper base with the use of purchase invoice to import shipped non-invoice lines into on invoice. However, this functionality is currently not available in the new e-document module.

Yammer discussion about this: https://www.yammer.com/dynamicsnavdev/#/Threads/show?threadId=2711225746505728