Invoice list process - inbound via EDI

I would like to understand the process of invoice list generated as B2B with supplier. So, supplier generates invoice list and send us INVOIC EDIFACT message. In this message we see multiple invoices being considered. I'm wondering what is the inbound process for invoice list generated. Is this content to be split up to single invoices to make sure INVOIC idocs inbound will arrive from SAP PI with reference to single invoice or we should process inbound to SAP S4HANA whole invoice list ? What about then accounting document in AP as liability ? is this referring to overall invoice list amount ?

Thanks for some guidance here.