Welcome to the TeamViewer Community and we are here to help!
We have prepared this handy license overview page - License Activation Guides for all TeamViewer licenses. You will be about to find the corresponding activation to your TeamViewer license step by step. You will need that activation link and a valid TeamViewer account. Meanwhile, please check your email inbox for the activation link sent from TeamViewer too.
Hope you may smoothly and successfully activate the license and use TeamViewer without any hassles.