Definition
In a WordPress Multisite network, "network activate" is the super-admin action that enables a plugin across every site simultaneously, with configuration stored at both the network level (shared settings) and the site level (per-site customization). The alternative is per-site activation, where the super-admin installs the plugin network-wide but each site admin activates it individually when they want it.
Network activation is appropriate for plugins that should be mandatory across the network (security, monitoring). Per-site activation is appropriate for plugins where individual sites may or may not need them (specialized integrations, seasonal campaigns).
How SheetLinkWP relates to Network Activation
SheetLink Forms supports both network and per-site activation. When network-activated, license validation happens once at the network level, but Apps Script webhooks, field mappings, and routing rules are per-site. Agencies typically network-activate so every client site has the plugin available, then configure each client site individually with its own Sheet destination.