Installation & Licensing

New Member
Posts: 1
Registered: ‎03-25-2013
Message 1 of 3 (1,748 Views)

AutoCAD LT 2013 will not take previous serial number for activation

1748 Views, 2 Replies
03-25-2013 08:44 AM

I am trying to activate AutoCAD LT 2013 from 2008.  When it asks me for my previous serial number, I get this message:


The serial number you entered for your previous product is not valid. Try again. (18)


Jonathan Carlos in Customer support responded saying that my old serial number has already been upgraded to another new serial number for AutoCAD 2013 LT, which doesn't match the one I have.


What do I do now?




David Hrechuk

*Expert Elite*
Posts: 10,023
Registered: ‎01-14-2005
Message 2 of 3 (1,742 Views)

Re: AutoCAD LT 2013 will not take previous serial number for activation

03-25-2013 09:06 AM in reply to: hre0004

You need to ask Autodesk or your Reseller what your latest serial number was before the upgrade.  It may have been upgraded under previous Subscription without your knowledge.  They'll have the number. 


If you cannot obtain it, send me your 2008 serial number in a PM and I will see if I can look it up for you.

Travis Nave Send TravisNave a Private Message                       Need help in your post? Mention me with @TravisNave
Community Manager
Posts: 2,401
Registered: ‎09-27-2011
Message 3 of 3 (1,723 Views)

Re: AutoCAD LT 2013 will not take previous serial number for activation

03-25-2013 12:07 PM in reply to: TravisNave

Confirming that the previous version serial number is attached to an active subscription contract, and has consequently been upgraded multiple times to the current 2013 version.


With that being said, I would contact the Contract Manager on the account (C. Ryall) to inquire about receiving the relevant licensing info, at which point you would potentially be able to return the recently purchased upgrade license.

Philip Schmelzer

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