To smoothly , start by opening Facebook and proceed to community page. Here, click on publishing tools in the left column and it will open the range of posting options. Now, tap on blue create post button. Here, prepare and create the post. Choose the publish dropdown and choose to schedule post. Now, beneath publication, choose date and time when you want the post to publish. Lastly, you need to tap to schedule. These are the steps that you need to follow to smoothly schedule Facebook post on iPhone device.