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Running `pulumi up` will only act on the current project and stack. So the stack via the StackReference must have already been provisioned separately.

Our Automation API would let you run `up` across multiple stacks if you needed to.

<https://www.pulumi.com/blog/automation-api/>

Thanks <@UDEJ1F5SQ> - Would that map dependencies across projects/stacks so that `StackReferences` are resolved first before referenced?

It does not automatically map the dependencies, but would let you set the order in your own code.