To create a post is quite straight forward on their portal site or mobile app. You'll need to login into your Buffer.com account (instead of using the native applications).
Select the content section since we want to create a new content.
Before doing any posting, ensure you're selecting the correct channel to propagate the posting.
TIPS:
Now design the post you wanted to share. If you wish, add a link for sharing.
If you're also encouraged to change the post photo appearance when available. This will make it appears more appealing that the others.
NOTE:
Once done, select the "Add to Queue" to add the post into Buffer queue for posting. Buffer will set the post to be posted on the train messages.
TIP:
Let Buffer post the posting for you in the next queue.