1. First click on "Marketing"

2. Click on "Social Media Planner".

3. Afterwards, click on "New Post".

4. Following that, click on "Create New Post".

5. Select the socials (add Facebook pages) from dropdown.

6. Click on "Story".

7. Add the content with image or video.

8. To end, Schedule the Facebook Story from Social Planner.

Specification of Facebook Story -
For Facebook story, user can add one image or video.
Image is required in JPEG, PNG or GIF, max file size is 4MB.
Video is allowed in all format with 1GB or minimum 3 seconds and maximum 90 seconds length and minimum dimension of 540*960 px.
Facebook story doesn't support thumbnail or OG Meta Tag.