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COC for Data Entity

[ExtensionOf(tableStr(SalesOrderLineVEntity))]
final class SalesOrderLineV2Entity_Extension
{
    public boolean validateWrite()
    {
        boolean ret = next validateWrite();
        if (this.DeliveryAddressCountryRegionID != "US")
        {
            ret = checkFailed("Delivery Address is not US.");
        }
        return ret;
    } 
} 

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