As long as your request activity hasn't yet been approved, you can cancel the Activity. 

Note: Canceling the Activity will cancel the entire request. 

First, click on the Gray Icon containing three dots and click Cancel Request. 

A Cancel Request pop-up window will come up. The submitter will be required to enter comments and click Confirm.

By clicking Confirm in the Cancel Request pop-up window, the system will:  

• Change the activity status to Canceled.
• Change the recipient(s) status to Canceled. 
• Change the request status to Canceled. 
• Send an email to the current and any previous approver(s) notifying them that the request has been canceled. 

Note: Once the request is Canceled, it cannot be restored.