Approval Groups allow you to determine the employees who can approve or deny requests for the following categories:
To create an Approval Group, go to Company Setup>Automation>Workflows.
Click Add Approval Group. The Add Approval Group box will pop up.
Name the Approval Group, and then enter the name of the approvers in the Search Employees box.
Click Save. You can now assign the Approval Group to your employees.
Please note that you can have multiple approvers in one Approval Group. For the approval to go through, all approvers must approve the request in turn starting with Approver 1.
An example of the approval chain is as follows: