The Reschedule function allows you to reschedule a post on the same social account or on a different one.
If you need to reschedule a post for the same social account, first, make sure you select that account on the upper part of the screen. Then, go to the Scheduled Posts section, and under either your Past Posts or Future Posts, find the post you want to reschedule.
Finally, click on the Reschedule button (two arrows icon) to send a copy of the post to the Composer. There you'll be able to edit your new post if you need it and also choose a new date and time. If you're on the compact view keep in mind that you need to click the three dots menu icon to find the Reschedule button.
To reschedule the post to a different account, you'll do the same steps indicated above, except that once the post gets sent to the Composer, you should deselect the account it was originally scheduled to, and select the new account. Finally, choose the date and time (and edit it if you need to) to reschedule the post.
Keep in mind that rescheduling will not delete the original post, so you might want to go back and delete it if you don't want it to be posted. You can see how to delete posts here.
π ProTip: If you have used the Bulk Uploader to schedule your posts, there's an easier way to bulk reschedule them. Just go to the Bulk Uploader section on the side menu, and look for the CSV file you want to reschedule. Then, click on the three little dots menu on the right, and select the Reuse option. Make sure you select the correct social account first.