Use of XI Eori

Hi We are a UK company with our business establishment in England. We do not have a business establishment in Northern Ireland but do have customers in NI. We are having some goods shipped directly from our parent company in the Netherlands to one of our customers in Northern Ireland so we are 'receiving' the goods in Northern Ireland and then selling them to our customer. Am I correct in thinking that the supplier invoice from our parent company to our company should quote our XI EORI number rather than our GB Eori number ? If so should our VAT number on the purchase invoice also be prefixed with XI rather than GB ? Thanks

Hi,
Please check below guidance on what do you require before you move goods between Northern Ireland and the EU:
Before you move goods
Thank you.