API release notes for September 2017 release Interface changesInterface nameChange (identifier)Release dateIInvoice Interface.GetInvoicePdfByInvoiceGUIDThird option into InvoicePdfGetOptionsInvoiceOnly = 2, Only the invoice is included. Does not include invoice breakdown attachment and invoice PDF attachments.21.9.2017IHourEntry.GetHourEntriesByDateAndUserGUIDAPI crashing, returning "Object reference not set to an instance of an object." -error when user doesn't have rights to case in a certain scenarios. Issue is now fixed.21.9.2017 Did you find it helpful? Yes NoSend feedback Sorry we couldn't be helpful. Help us improve this article with your feedback.