It is pretty simple. Just follow these 5 steps.
Step 1: First you need to select the content you want to share. You can do this from the Content Editor, the page editor, or from the Social media Campaign Manager dashboard.
In this example we want to create a Facebook share about our Social Media Campaign Manager page.
Step 2: Select New Facebook Share
This will open the Create New Facebook Share dialog box
Step 3: Select a valid Campaign that you want to track this share under. The Event name is automatically created, but you can edit the name to be more or less descriptive if you choose.

Step 4: Enter your text for the tweet.

Note that the tool keeps track of how many characters you have typed.
Step 5: Select the Facebook Profile you want to post the share to.
Step 6: If you have not yet logged into Facebook, you will be prompted to login. Then you will have an opportunity to preview the message.
Step 7: If the message was posted succesfully, you will get a confirmation notice from Facebook, and of course see it on your Facebook page
It is important to understand that if you change the message those changes will NOT be reflected in the Social Media Campaign Manager. If you do change the message, we strongly recommend that you copy the edited message and update the tweet information inside the Social Media Campaign manager. Also, if you close this window and DO NOT post the share, the share will still exist in the Social Media Campaign Manager.