Hi

On creating an ACCPAY invoice using the Xero.NetStandard.OAuth2.Api we are getting an Error 10 message, with a validation message that doesn't really tell us anything:

"Message": "An error occurred in Xero. Check the API Status page http://status.developer.xero.com for current service status. Contact the API support team at api@xero.com for more assistance."

Below is a snippet of my code, for reference we pass in a valid Xero PurchaseOrder and Contact object to our method


List<LineItem> lines = new List<LineItem>();

foreach (LineItem lineitem in purchaseorder.LineItems)
{

LineItem invoiceline = new LineItem
{
AccountCode = lineitem.AccountCode,
Description = lineitem.Description,
UnitAmount = lineitem.UnitAmount,
ItemCode = lineitem.ItemCode,
Quantity = lineitem.Quantity
};


lines.Add(invoiceline);

}

Invoice invoice = new Invoice
{
Contact = contact,
LineAmountTypes = purchaseorder.LineAmountTypes,
Type = Invoice.TypeEnum.ACCPAY,
Date = DateTime.Now,
LineItems = lines,
InvoiceNumber = purchaseorder.PurchaseOrderNumber,
DueDate = DateTime.Now.AddDays(30)
};


// Post bill to Xero

List<Invoice> invoiceList = new List<Invoice>
{
invoice
};

Invoices invoices = new Invoices
{
_Invoices = invoiceList
};


try
{
Invoices xeroresult = accountingApi.CreateInvoicesAsync(accessToken, tenantId, invoices).Result;
}
catch (Exception ex)
{
return "Fail";
}