Your VAT number is automatically selected as the main identifier.
If you want to add a different identifier for your own company, such as a DUNS, CBE, KVK, RPM, OIN, OIB, or SIRET number, you first need to add these numbers to your company profile:
Once you’ve added more than one identifier, an e-invoicing tab will appear in your company profile. Click it to view a list of identifiers. Then select the number you want to prioritize and confirm.
To assign multiple identifiers to a client, you can follow roughly the same steps:
The new 'e-invoicing' tab will appear in your customer's profile. Here, you can set up your list of identifiers and optionally assign a priority