Our very large German client wants us to invoice their German company and German address but put their Latvian VAT number on the invoice and not the German VAT number. They say this is because their warehouse is in Latvia and we will deliver directly to Latvia from the UK.
But is this correct? We use Sage Line 50 and in fact it does not allow us to generate an invoice with another country's VAT number.
I can find nothing about this on any VAT website.