You can delete any number of products in a discount. There are two ways to delete products from a Prime Exclusive Discount. You can delete directly from the webapp or by uploading excel with SKUs to be deleted.
Go to Prime Exclusive Discount, and choose View Details from the action cell corresponding to the discount you want to edit. If you have uploaded products, then you will be directed to Review page. Click Remove Product corresponding to the product you want to delete.
Go to Prime Exclusive Discount, and choose View Details from the action cell corresponding to the discount you want to edit. Once the discount details open up, click Delete in the action button corresponding to the product you want to remove. You will be directed to the Review page. Confirm Delete by clicking Save All.
Go to Prime Exclusive Discount, and choose View Details from the action cell corresponding to the discount you want to edit. Once the discount details open up, click Add More Products. Upload the discount upload template spreadsheet filled out with the SKUs you want to delete marking "d" in add-edit-delete column. Submit the products in the review page.