serial number you provided is valid but a qualifing product could not be found on this computer.

[default1rai0xcx6ao7]

After downloading adobe Xl I get error: serial number you provided is valid but a qualifing product could not be found on this computer.

[John T Smith]

That means you have an upgrade, so you need to...

A - have the previous version installed

or

B - provide the previous serial number during install of the upgrade

[default1rai0xcx6ao7]

Thanks, I contacted customer service like someone said they had to do and they are going to issue a new serial number.

[Peru Bob]

That message means that you are installing an upgrade version.