Profit Generator Sold out message:
Right now, when a profit generator is sold out, the message reads... "Sorry we sold out of this". It could be misread as a polite middle finger jab :)
How about a message that reads something like:
"Sorry, we sold out on this offer. Kindly give us a call to learn about our other trial options and special promotion offerings. We can be reached a (555)555-5555".
That way the prospect's trail doesn't end there, but incentivised to follow up.