public bool getInvoicePaymentDate(
	short companyId,
	string externalCompanyId,
	string corporateId,
	out List<PaymentDate> paymentDates,
	out List<string> errorMessages
)

Public Function getInvoicePaymentDate ( 
	companyId As Short,
	externalCompanyId As String,
	corporateId As String,
	<OutAttribute> ByRef paymentDates As List(Of PaymentDate),
	<OutAttribute> ByRef errorMessages As List(Of String)
) As Boolean