Page History

After clicking "Manage feeds" you can see the announcement's admins page, in which you can manage a Feeds and Announcements. 

Now from the left bar (FEEDS) choose your feed. 
Then on the other side form from the right bar (ANNOUNCEMENTS) find and click the "+ Add New Announcement" button. 

After that, a new window will show up, in which you can create an Announcement in 3 steps. 

Step 1 - Select Type 

At this point, you can specify a type (Single Issue, Multiple Issue, Simple Text or Confluence Announcement). 

Step 2 - Define 

This part is responsible for:

• Announcement name & description, Issue, JQL filter or Confluence link 
• Start and End date -  when the announcement will start and end be visible for to users
• Redirect URLs -  on which page users will be redirected after click clicking Approve, Reject or Dismiss button

Step 3 - Preview 

Here you can see how what your announcement will look like. If it looks different than you want you can click the Previous button or check your Feed's configuration.