When a company has multiple VAT registration numbers the VAT transactions on purchases and sales are linked to one of those registration numbers which is necessary for the periodical VAT, Intrastat and EU sales list declarations.

However the used company VAT registration number is not included in the data provider classes for the printing of the documents, whether it is the purchase order, sales order confirmation or sales order packing slip. Only the default company VAT number linked to the primary address is included, so the documents cannot show the correct company VAT number.