Buying apps with different AppleID than one used to buy OS X Lion

Case: I bought a new Macbook pro and I got lion as free upgrade.

By mistake my friend's apple id was stored in the Mac App Store and I didn't notice the error when I entered my redemption code.

I already redeemed that lion upgrade using my friend's id on my machine.

The purchase, download and upgrade all happened on my machine. I intend to keep on using that Lion for my machine only.

I download new apps and everything using my apple id not my friend's apple Id. Will it work? Or for my new upgrades or downloading new apps, do I need my friend's ID and password.

Moral: Lion has been downloaded with different ID and Now I want to use my apple id to install new apps.

It will work, although it will not be legal.

It will work, because OS X doesn't care what AppleID it was bought with and you can easily buy new apps using any other AppleID. I.e. if you have more than one AppleID you can use any to buy apps and they don't have to match the one you bought Lion with. It will slightly complicate the apps update process, but it will work without any problems.

It will not be legal, because you will be using OS X Lion bought with someone else's AppleID - not yours. So you are not legally allowed to use it.

In your initial question you ask whether you can transfer Lion purchase from one ID to another. No. Apple's policy does not allow transferring purchases between IDs.

Having to maintain a purchase under your friend's Apple ID is a bad idea. If they change their password or otherwise change/lose their account, you're stuck in a bad situation if you ever have to re-download the installer.

Although Apple doesn't allow purchase transfers, they do have a return policy. As per this Apple Support Communities discussion, if I were you, I would do the following:

1. Open iTunes. Go to menu item Store->View my Account. You should be asked for your password. Have your friend use his account and password.

2. Right in the middle of the window should be your friend's purchase history. Click View All to the right of that.

3. OS X Lion should be in the list. Below the list should be a big button labeled Report a problem. Click it.

4. Now the list of your purchases should have a Report a problem line right from each item. Look for OS X Lion, click the corresponding Report a problem button.

5. On the form where you can state your problem with Lion (accidentally upgraded with wrong Apple ID, for example.) State that you want your money back or a new redemption code. Send the form.

Your friend should then receive an email. If Apple gives money, you can work it out between each other. If needed you can call Apple Customer Relations at 1-800-676-2775 and I bet they would be happy to solve this problem or step you through a solution.