Yes, you can specify your VAT number on a profile page under "VAT Number" section. Please note, the reverse charge mechanism will be used.

The Reverse Charge Mechanism

The EU created the concept of Reverse Charging VAT in order to simplify trade within the Single Market. The Reverse Charge moves the responsibility for the reporting of a VAT transaction from the seller to the buyer of a good or service. This reduces the requirement for sellers to register for VAT in the country where the supply is made.  

When a transaction is subject to Reverse Charge, the recipient of the goods or services reports both their purchase (input VAT) and the supplier’s sale (output VAT) in their VAT return.  These two declarations offset each other from a cash payment point of view, but the authorities have full visibility of the transactions.

Most sales between EU member states will be subject to a reverse charge and there are also many instances where a domestic reverse charge rule exists within specific EU member states.

Source link: https://www.vatglobal.com