NB: At this stage, the email will still send for each product purchased. E.g. if you're running an event and set to use the same email for your 'General Admission' item and your 'VIP' item and someone purchases both, they will receive two emails.
For more info on setting up custom emails and disabling the Contribution Received: To Supporter email, see the following article - https://help.givecloud.com/en/articles/1541681-how-do-i-send-item-specific-email-notifications
An example of how this could be used: If you wish to sync all donation gifts to DonorPerfect, but do not wish to sync any of your store sales you can disable the sync for your store items. For more information, check out the following article https://help.givecloud.com/en/articles/5643519-donorperfect-how-to-disable-sync-on-an-item
These settings can be found under Features > Website > Site Design in the "Cart & Checkout" tab. Scroll down and look for the section labelled "Tribute".
You can see these templates along the right-hand side when you head to Features > Sell & Fundraise > Items and either click to add a new item, or click to edit an existing item.
The first re-try attempt happens automatically, then 8 min, 16 min, 25 min, 33 min, and again 33min after.