An invoice invoice handler is a member of the invoice approval chain, but they do not have the option to approve or reject an invoice. Instead, the Invoice Handler can review the invoice and "Pass Along" the invoice for the next approver.  Since they are not an approving member of the approval chain, their designation is IH in the invoice chain. 

The Pass Along button sends a notification to the next individual in the approval chain that needs to take action. Unless this button is pressed, the invoice cannot be approved or rejected.

When the invoice has successfully passed to the person in the Invoice Approval chain, Lawtrac will advise the Handler