Check if customer successfully placed another order before sending email

I'm not sure if there's an easy way to handle this within uc_followup. There are a lot of possible scenarios where a duplicate order could be created for a customer. For example, if a customer clicks the "back" button during checkout review and then continues, you're left with 2 orders in the system: 1 in_checkout and 1 pending (see #841862: Revisiting the checkout review form multiple times creates a new order each time).

And there may be scenarios where a customer wants to create multiple orders, and one or more of them end up as duplicates along the way. It would be very hard to determine which ones are which.

It seems that it should be up to the shop manager to maintain the orders in Ubercart, by setting bad orders to "Cancelled" to avoid followup emails. There may be a way to automate that process, as well.

I'm going to close this and set it to "won't fix" for now, unless a good solution presents itself.

Would it be possible to check before sending follow-up if there is another completed order for the user? I would like to send user email if he hasnt ordered anything for 3 months for example.

Here's an idea: what if there was a checkbox in the followup set-up form that said "Only send a followup for the latest order that matches these criteria."

Checking the option would only check ONE order (the latest one by that customer) for matching criteria, so it would only send out one email. As opposed to looking through ALL of the customer's past orders and potentially sending multiple emails, as it's doing right now.

That would be really great. Lots of new possibilities.

This is done in the latest 7.x-1.x branch.

Now I just need to port it to the 6.x branch...

Alright! Backported it to the 6.x-1.x-dev branch also!

This is done!