Retrieves a list of invoices that have been modified or created since the specified date, regardless of invoicee.
[WebMethod(Description = "Retrieves a list of invoices that have been modified since a date")] public TAuthInvoiceList GetInvoicesModifiedSince(string token, DateTime sinceDate);
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Parameters  | 
Description  | 
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string token  | 
String containing a token.  | 
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DateTime sinceDate  | 
Datetime for the minimum last modified date of invoices to retrieve.  | 
TAuthInvoiceList containing a list of invoices, each of which contains a list of invoice line items, that have been modified since the date
This function returns a list of invoices that have been modified or created since the specified date. It can retrieve invoices for different invoicees.
The sinceDate parameters is a date/time. Only invoices that have been modified or created since this date are returned.
Please note that retrieving a large number of invoices may be slow and may cause timeouts.
Each invoice is represented by a TInvoice object. Each of these objects has an InvoiceItems property that contains a list of TInvoiceItem - each of these objects represents a line item on the invoice. The list of invoices is returned in a TAuthInvoiceList object.
A token is passed for authentication. If the authentication fails, or other errors occur, no invoices are returned. The result of the authentication is represented by a TAuthenticate object.
Requires a valid registration key entry for the Finance feature.
This function has security level "Protected", and can only be accessed by users that have explicitly been granted permission to the API.
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