Thanks Rob, I'm not sure that this will suit my use case though - I've expanded on the question to provide more detail (I was unable to do this via the bot).
Ahh makes sense. I don't know of a plugin, but shouldn't cost more than a few hundred bucks to get one developed (if you're not a dev). Doesn't seem too onerous.
There are a bunch that do upsells. Not sure about randomising it, but you might get better results from tailoring the upsell product anyway.
Thanks Rob, I'm not sure that this will suit my use case though - I've expanded on the question to provide more detail (I was unable to do this via the bot).
Ahh makes sense. I don't know of a plugin, but shouldn't cost more than a few hundred bucks to get one developed (if you're not a dev). Doesn't seem too onerous.