You can edit a deals by clicking on the “Edit” button on the right side of the deal
From here:
You have the ability to edit the deal name of a deal
You can edit the deal’s schedule’s start and duration of the deal
You can edit the type of deal into Percentage or Fixed amount. Also, the Deal value of Percentage and Fixed amount and the Max purchasable quantity
You can edit the collections or products of a deal. Also, if the rounded price is activated, you may edit the rounded price of a deal.
All changes should reflect on the summary at the right part of the screen
If you are done editing the deal, you can finish editing the deal by clicking the “Update Deal” button.