Please refer to our knowledge base article for how to activate a TeamViewer license:
In general the TeamViewer license needs to be linked to a TeamViewer account.
After it is linked, you simply need to login with your licensed account in the software in order for it to recognise the license.
I hope this answers your question.
Thank you for joining our Expert Day!
Please read the following instruction in order to activate your license.
Hope this information will be helpful for you.