Hey, @Leslie_Josel !
Thanks for joining this thread and for sharing your feedback.
I know how convenient this would be as you’re selling your store, however, it is not possible to delete historical sales data as Shopify maintains a complete record of all transactions on the platform. Rest assured, you could export all of your stores information to a new store which will save time instead of redesigning the store manually.
Let me know if you have any questions about exporting your files and I’d be happy to assist you in this process.
Thank you!