In case you need to receive approval for a workflow, you should send it to a responsible person via e-mail. 

1. Once you submit your workflow, you will see "Request Approval for Report" button. Click on this button to proceed further.

2. Enter an e-mail address of a person who should receive the report to review it and click on "Add".

3. Once the e-mail is on the list of "Send request to:", click on Send Request" button at the bottom.

4. The approver will receive an e-mail and once it is signed, you will be able to see the report together with a signature under "Reports".