An Administrator user has the ability to resend approval emails if required. This function is available in all DPF modules.
Login to DPF, go to the relevant module, and find the transaction/s that you want to resend the approval email for.
On the right-hand sidebar navigate to the Approval header.
The current approver will be highlighted in green, and there is a Send Email button that can be clicked to resend the email.
If your production does not have an Administrator setup, please log a ticket with TPH Support by emailing support@helpdesk.tphglobal.com with the transactions that you would like the emails resent for, and the Support Team can take care of this for you.