Thx Jason.
It works with:
//eCart Rule
function WAEC_eCartUllrich_Versandkosten() {
$totalShipping = 0;
if (true && (($this->TotalColumn("TotalPrice") < 300) || ($this->ConditionalTotal("Quantity", "Primeur", "1") > 0))) {
$totalShipping += 12;//Result
}
return WA_eCart_FormatNumber($totalShipping, $this->ForceDecimalsC, $this->DecimalPlacesC);
}
//eCart Rule
:-)