Facebook页面访问令牌有效期长度

Question

I have worked out how to get a facebook page access token and post to the page's wall. I would like to know if the facebook page access token expires and if so after how long? Also If it does expire what can i do to prolong it validity.

Answer 1

Page access tokens don’t expire by default – but they will go invalid if the user under which they were obtained changes his password.

This is only true if you get a long-lived access token for the page admin before requesting the page's access_token from the API, otherwise it expires along with the user's access_token - see Scenario 5 on