I’m currently working on a customization project in which a file is created and attached to an invoice every time a user presses the print invoice button. The logic is implemented in ARInvoiceEntry and works perfectly, after pressing print the page refreshes and then redirects to a new tab for the report. However, in SOInvoiceEntry the logic is run from the ARInvoiceEntryExtension class which works as desired, the file is created and attached to the SOInvoice entry but the refresh does not work which means the Files indicator does not update to show that the file has been attached so the user needs to manually refresh the page to see the change. All I need is a way to refresh the page before the redirect exception is thrown and the report is shown so that the files indicator updates in SO303000. I tried using Base.Save.Press() in SOInvoiceEntryExtension class but it does not refresh even though the same method works with ARInvoiceEntryExtension. 

Any insight would be kindly appreciated, thanks.