You can edit posts until the publish time.
Your social activities may contain multiple posts for different social networks. You can edit all posts for an activity at once or customize each separately.
1. Go to "Posts" feed in your Comity dashboard.
2. Find the activity you want to customize in the list and click "View".
3. Click "Edit All" or pick the post you want to customize and click "Edit".
4. Review the post for one last time and click "Update Post" to finish customization.
If you use "Edit All" to update all posts in an activity, it will override any customization you may have made to your posts.