The serial number is on the inner sleeve of the package.
If you haven't already registered your program, I don't know any way to get a new serial number without buying it again.
As Steve points out, if your Premiere Elements program was NOT Registered with Adobe, they will not have a record of your S/N. That is one reason that we strongly recommend that everyone Register all of their Adobe programs. Then, from the Adobe.com site, they can retrieve those S/N's, when required.
Even with a copy of your Amazon invoice handy, I am not sure that Amazon can help you, as they would not be likely to open each box, and record those.
Wish that I had better news on this, other than good luck.
If you purchased Photoshop Elements 11 and Premiere Elements 11 bundled together, you had to know that 2 different serial numbers were involved otherwise you would not have gotten them both installed in the first place. If you are using Windows, the installation files for each program are on the same disc.
During the installation of the products, there is a sort of (not the usual fill in type) automatic registration that takes place when you use your Adobe ID and password.
Once done, you should expect to be able to view your Adobe products and their serial numbers under "My Adobe" at http://www.adobe.com. Have you checked that out?
Thanks to all of you who responded. You should all work for Adobe because your customer relations skills are greater than those of the person I spoke to on chat about this issue.
Maybe I should have known, but i didn't have to know that I needed two serial numbers. Both programs installed just fine. I registered Elements the day I got it and established an Adobe ID and password. I had a previous version of Elements and don't remember if I established the password at the time I registered my first or second version.
Elements 11 ran very slowly on the old computer. I tried to start Premiere Elements but it ran even more slowly than Elements did and since I had no videos to edit, I abandoned the process, thinking one registration was all I needed and that I could return to Premiere Elements when I had some time and some video to edit. I didn't get to a registration screen on Premiere Elements and I figured one disk, one password. Maybe I should have known, but I didn't and as far as I got in the process, nothing explained it to me.
Next, and clearly my mistake, I misplaced the packaage with serial number information on it.
That was a year ago. This week, I got a new computer. I installed both programs. Again, no problem. I was able to recover the serial number for Elements 11 and register it on my new computer. The only painful part of that process was how long it took to get on chat with a representative who was helpful. Elements runs faster on my new computer, so I started Premiere Elements. It also runs faster on this computer, so I got to the registration screen and tried to register it using the serial number I had just recovered. Having reached the registration screen for Premiere Elements for the first time this week and tried to register it was when I discovered that I needed two serial numbers for one disk.
I'm trying not to disparage the second person I reached on chat, but he or she did suggest that I should return year-old software I've been using and no longer have the original package for to Amazon, since Amazon is not an authorized seller of Adobe products, and rebuy it from an authorized seller. Whether the person on chat was stupid, I can't say, but that answer certainly was. They said they were unable to help me because Amazon is an unauthorized seller. That does imply that I could be helped if I bought it from an authorized seller. Does buying from an authorized seller make a difference? If it does, how was I as a first-time customer supposed to know that it's bad to buy from the world's largest retailer?
Since chat person #2 implied the reason I couldn't be helped is that I bought from an unauthorized seller, that also implies I could be helped if I bought it from an authorized seller. I have the disk (and the Mac disk too) and can prove I didn't pirate it or even buy it used, so I hoped someone could help me to register Premiere Elements now that I have a computer that will at least let me start it and can get to the point where I know it needs to be registered under a second serial number I once had, but can no longer locate.
All three of you are telling me no. It makes me feel bad that there seems to be no way for me to recover from an error I made that I think was a reasonable error to make. However, all three of you told me no without condescending and in a much nicer tone than chat person #2 and all three of you responded quickly, unlike Adobe chat. So, I do feel good about coming here and thank all three of you for your time.
Thanks for the update. Sorry the news is not better.
But, let me ask this just in case...did you check out the My Adobe button on the home page of http://www.adobe.com to rule in or out that somehow your Premiere Elements 11 purchased serial number is listed there?
The My Adobe button is under the Search field near the right top of the page.
The path that follows would be
My Products and Services
then give it a few seconds to bring up the data. You should see your product listed and, if you click on the triangle there, you should see the serial number for that product.
Is that Adobe page accepting your Adobe ID and passwork?