Some DMS will not let you unwind deals
Go to the customer you want to unwind
Go to the "Deals" tab
Choose the deal you want to unwind
Click the "UNLINK DEAL" button
After you Unlink the Deal, you should see the deal go back to the Sold status it was originally in, and show the Unlinked Deal in the Unlinked Deal bucket below the Delivered bucket on the Pipeline.
If this is a deal that needs to be removed from the CRM, please have your Expert User contact your Customer Success Team via the Support Chat icon and ask them to remove it!