If I could recall, Facebook share button missing happened to occur on pages and groups in 2014, 2015 – but no one could be able to come up with the issue and reasons even Facebook teams.
Now, in 2018 the same share button has disappeared on posts. We have discussed the possibility in this article.
Facebook privacy option for posts – Public, Friends and Only me defines the level of visibility of one’s post.
Someone can decide to let his/her posts be visible to friends only, everyone or just for oneself. You can check my post on Facebook privacy settings here
Reasons for Facebook Share button missing?
If you have checked our posts about Facebook privacy settings, you will understand how it works in details.
We have learnt that Facebook share button not showing only happens when one’s privacy option for any post is set to Friends. Although, the share button shows in public posts.
Since a post is meant to be shared or visible only to one’s Facebook friends only, Facebook might have thought it wiser to keep off the share button from another group of people apart from your friends.
This means, when a friend likes and decided to share your post (which you have set to be in your friend’s circle only) to his/her own timeline, that means that he/she might be violating your privacy option for that post.
His/her friends may be able to see your post which is not meant to be. But, that is not really the main issue there.
I think the actually reason why Facebook share button disappeared was to avoid redundancy of Facebook call to actions – unused or unnecessary buttons like share button.
Why is it redundant or unnecessary?
When someone shares a post set only for friends, according to Facebook the post will only be visible to friends that you are sharing with the owner of the post you shared.
It will not be visible to friends of friends but just the same friends both share – ie. A has B and C as friends When A updates, both B and C see the post. Also, when C shares A’s post, B will still see the post.
That comes the reason for redundancy. If B sees A’s post and C’s shared Mr A’s post , there is no good reason for keeping the share button since no change or extra audience has been reached.
Just still the same people in a circle sees the post all over again.
How Do I make Facebook Share button appear again?
The only way for now until Facebook changes mind in later updates is to change post privacy to Public. Public means that you want your friends of friends, non-friends to see your post even when shared by your friends or their friends of friends.
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Facebook share button does not show even when the post is shared to Public.
If your friend’s post has a missing share button on it even when the post is shared as Public then it could possibly be from Facebook.
A lot of stuff happens on Facebook which most times we find it more confusing to interpret. When things like this happen, simply take time to watch it until it is fixed.