Depending on system configuration and your user rights, you may have the ability to send approval requests for review to other users.
When you send an invoice for review, the time allotted for you to approve or reject the request is not paused; it continues to run while the invoice is in review. As the approver, you have the option to approve or reject the invoice before it is reviewed. The review simply allows someone who may be more familiar with the project to evaluate and make comments about the invoice.
Invoice Review Requests can be forwarded in batch using the Approvals summary list, or individually using an invoice record.
