A one-time activation through Microsoft's hosted services. You enter the key in the Office Customization Tool (OCT) or directly in the app under File > Account > Change Product Key .
For businesses and organizations, Microsoft provides structured methods to manage licenses: activador para microsoft office ltsc professional plus 2021
A minimum of five client requests is generally required for the KMS host to begin activating clients. Microsoft Learn Technical Deployment & Activation Admins often use the Office Deployment Tool (ODT) to install and configure activation automatically. Microsoft Learn Microsoft Office | Microsoft Volume Licensing A one-time activation through Microsoft's hosted services