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Invalid License number and Serial number combination.

Occasional Advisor

Invalid License number and Serial number combination.

I purchased a Lync license from When I try to activate it for my VVX600, I get the message in the subject. After a lot of back and forth, I received the following response from the seller:



Installation of this license is not a requirement. Please keep the UC Lync License for verification if Polycom or Microsoft decides to audit you. Not installing the license will not affect the functionality of the software.


Do I need to worry about this?

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Polycom Employee & Community Manager

Re: Invalid License number and Serial number combination.

Hello cdonner,

welcome back to the Polycom Community.

The Information provided by the reseller is correct.

Best Regards

Steffen Baier

Polycom Global Services

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Message 2 of 2