If the rollout is to be available on the Rollout Server for "pulling" the rollout to the device and then installing it (formerly Pull Rollout), a specific package must be generated.
On the Global Settings node, select Rollouts >Servers.
Under your device node, select the appropriate server or assign a rollout to a rollout server.
On the Assigned Schedule tab select the appropriate entry from the list and click Edit > Generate Rollout Package.
The package is immediately generated and made available on the rollout server web page i.e. https://<ip rollout server>:<port>/rollout/