Facebook error 210 “User not visible”

Question

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I\'ve got an error \"User not visible\" with error code 210 as response while publishing content on friends wall via application.

:::Scenario is as fol

Answer 1

I had this exact issue when having restricted usage of the Facebook app to a specific country. When trying to use the app from another country, I got an error.

Country Restrictions are available on https://developers.facebook.com/apps/ > Settings > Advanced.