To view, edit, and delete discount codes created with MyBulk Discount Creator, you can use Shopify's Discounts screen in the admin. MyBulk Discount Creator is a simple app, so most of the usual functions for editing discount codes can be found in Shopify's Discounts screen.
To access your discount codes in Shopify's admin:
1. Click on "Discounts" on the left-hand side of the Shopify admin.
2. Select the discount set that you want to view or edit. The set created with MyBulk Discount Creator will have an "App" tag next to its name.
3. Click on "View all codes" to see the list of codes in the set.
From here, you can edit or delete the codes in any way that Shopify allows. You can also use the "Bulk actions" menu to make changes to multiple codes at once.