eInvoicing implementation guideline
VDA global invoice implementation guideline
SupplyOn APERAK D.15
Status notification (error messages) for the invoicing process
SupplyOn_INVOIC_D99B_v1-6
Self billing invoice D99B. From buyer to seller.
SupplyOn_SBINVOIC_D03A_v1-1
Self-billing invoice D03A. From buyer to seller.