Invoice without own VAT number

I have a question about an invoice I want to enter. It concerns a purchase for Microsoft 365 Personal. As it is a personal account, Microsoft does not allow me to enter my vAT number in the invoicing details.

On the invoice:

• Microsoft’s Belgian vAT number is stated

• 21% is charged

• my own vAT number is missing

I assume that this means I cannot reclaim the vAT.

How do I enter these expenses correctly in Dexxter so that everything is okay for tax purposes?

Thank you in advance for your help!