Hi Knut, Thank for your fast replay, I checked custom OData service and found some answers... But I have still some issue about Tax-ID There are two way to get BuyerTaxID... ItemPriceAndTaxCalculation.ItemTaxationTerms.BuyerTaxID  : it's empty ...

Hi, Thanks for API samples.. But we have some issues about our CustomerInvoice senario Turkish e-Document services. We are using CustomerInvoiceCollection API for to get released Invoices. We need some informations about Invoice for example Custome...