When you close a process in Get on Board you can reopen it as long as it is less than 4 months old without consuming an extra quota of publications; but keep in mind that if you do not have an active subscription, you will not be able to refresh its date.
When you reopen an existing process, you keep all the data of the process: applications, messages, phases, notes, etc., and the announcement will keep its publication date or the one corresponding to the last time you refreshed the date of the announcement.
Note that when you close a process, if it was created 4 months ago or more, you will not be able to reopen it, and you will only be able to duplicate it (*); that is, your job will be cloned, keeping the original version in your 'closed' jobs and launching a copy of it as a new one.
To reopen a process: click on the 'duplicate' button > click on the link that says reopen process located below the 'following' button > that's it.
(*) Relaunching a job will create a new version of it. Please note that if you do not have a subscription plan, you will need to purchase an unlock to access your applicants' data.