$params{xml}->dataElement("ram:Name", _u8($self->customer->name));
_customer_postal_trade_address(%params, customer => $self->customer);
- _specified_tax_registration($self->customer->ustid, %params);
+ _specified_tax_registration($self->customer->ustid, %params) if $self->customer->ustid;
$params{xml}->endTag;
# </ram:BuyerTradeParty>