Abstract: The disclosure provides an approach for automatically scheduling resource-aware software-defined data center (SDDC) upgrades. Embodiments include receiving, via a user interface (UI), user input indicating one or more constraints related to automatically scheduling a plurality of upgrade phases for upgrading components of a plurality of computing devices across a plurality of SDDCs. Embodiments include receiving, via the UI, a user selection of a first UI control that, when selected, initiates an automatic assignment of the plurality of upgrade phases to particular time slots based on the one or more constraints. Embodiments include displaying, via the UI, a depiction of a schedule for the plurality of upgrade phases based on the automatic assignment. Embodiments include displaying, via the UI, a second UI control that, when selected, causes the automatic assignment to be finalized and a third UI control that, when selected, initiates a new automatic assignment.