Our app functions by using custom order attributes to set encrypted data for the Shopify discount function to process. Many stores use invoicing or other processes that will automatically display these large chunks of data that is messy and does not look nice when displayed to the shopper.
We have developed a simple Shopify Flow that will immediately remove the custom attributes after the order is processed. You can download the ".flow" file and access Shopify instructions on where to import that file in your store.
Flow File
Shopify Instructions