I just purchased 2 copies of norton mobile security, one installed without issue. The other generated a 25 digit product key when I only need a 10 digit key. Will this be something easily fixed?
Hi hern_28
Welcome to the Norton Community. 
If Norton Mobile Security you have was purchased from the Norton Online Store
and the product keys were emailed to you it might pay to contact Norton Support
Live Chat for free and they should be able to re-send the emails and the correct
10 product key that you require.
Norton Support Live Chat click on the link below-
Follow the steps and fill in the required details and select Live Chat.
I am sure the helpfull Symantec staff will be able to resolve the issue for you.
Cheers. 
I was in the wait for an associate when I posted. Never hurts to have a backup. They re-issued the key and all is well now.
Hi hern_28
Glad to help as a backup.
The Symantec Norton Support Live Chat always do a great job
from my experiences with them in the past.
Good to hear you will now have your Android devices protected
with Norton Mobile Security.
Cheers.