Publishing a post to social media
After installing and activating the Social Media Auto Publish plugin, the social media publishing options/metabox will appear when adding a new post or editing an existing one.
These options/metabox are displayed just below the post editor section.
Here , enable auto-publishing for the post to your social media accounts, then publish or update the post. The post will be published on your social media accounts according to the metabox settings for each account.