If your database is hosted with Blackbaud, you will want to run the Invoice Request Status Reverter plugin. This plugin will revert the request back to an Open status. At that point, the user who created the request can make changes and re-submit it or delete the request if necessary.
  1. Go to Plug-ins>Invoice Request Status Reverter
  2. Mark the affected invoices
  3. Click Revert Invoice Request
  4. This will revert the invoice back to Open status
Otherwise, contact Support and reference this article.