When you're ready, you can publish your ladder by clicking the publish button on the manage page, or clicking publish from the edit page. Publishing your ladder will open it up to start receiving activists who trigger conditions on your rungs. However, you will no longer be able to add steps or rungs to your ladder or delete steps or rungs. You will only be able to add or remove triggers from rungs and edit step parameters. Ladders also cannot be unpublished, so be sure your ladder is ready to go before you publish it.
Once published, ladders have three statuses, which can be changed with the toggle switches on the right of the manage page.
When ladders are active, activists will enter the ladder when they trigger conditions on your rungs as normal and move through until they exit.
When ladders are closed, activists will no longer enter them when they trigger conditions, but activists already in the ladder (waiting at a wait step, for example) will continue to progress until they exit.
When ladders are stopped, activists will no longer enter them when they trigger conditions and activists currently in the ladder will be flushed and exited without moving to further steps, clearing the ladder of all activists.