When there are multiple co-owners, whichever name is in the first line in the Debtor's details page, will be the designated taxpayer who will be issued e-invoices.
Unit owners with multiple co-owners may not want the pre-filled name they see in the Portal to be the taxpayer for their unit. However, the owners are not allowed to change the name in the Portal.
Switching the names of co-owners to change the designated taxpayer can only be done manually by admin staff.