Building on NETWORK TBO, the project will validate TBO solutions across all trajectory management processes, from planning to execution, with a focus on network actors. A transversal activity will develop a document, supporting integration and global interoperability. Four operational solutions will be validated to TRL6: unconstrained desired trajectory (UDT), representing the optimum trajectory from the perspective of airspace users (AUs), the Network Manager, and air navigation service providers (ANSPs); strategic trajectory revision (STR), managing execution-phase revisions and supporting ICAO’s FF-ICE 2 TBO concept; digitalised/dynamic letters of agreement (LOA), standardising exchanges; and trajectory synchronisation in execution (TSE), improving coordination of local and network trajectories.