The system uses transaction data to create the statistics and reports of your business, so it is not possible to delete sales, only cancel them. Canceled transactions cannot be recovered.
In Kyte POS 
or Kyte Catalog 
Access the Transactions menu
Open the sale you want to cancel
Tap Cancel sale
Confirm the cancellation by tapping Yes
The transaction will appear crossed out or will be removed from the list, depending on the configuration for viewing canceled transactions
On Kyte Web 💻
Access the Transactions menu
Click the $ icon at the end of the listing and click Cancel Sale
If you want, open the sale in question to see more details
Click on $ Cancel transaction and confirm the cancellation
The sale will appear crossed out in the general listing
⚠️ Sales made using Stripe will be refunded in the same way they were charged, payments made by credit card may take up to 10 business days to be processed.