Post to own business Facebook Page without user login

Question

I'm trying to post to my business facebook pages through a desktop application (vb.net). The app is used by myself to update some text to be published on a digital signage TV (this works fine) and also automatically publish the text to my FB Page.

I used the Graph API Explorer to generate the app user access token (with manage_pages and publish_pages permission) and a page access token for the app.

Using FB's Access Token Debugger I was able to generate a never expiring Page Access Token. I also see that the scopes for it are: manage_pages, pages_show_list, publish_pages, public_profile

In "Development mode" I'm able to POST successfully to the business page by simply using the URL:

https://graph.facebook.com/{my-business-page-id}/feed?message=TEST_MESSAGE&access_token={my_non_expiring_page_access_token}

In "Live" mode unfortunately the above POST request returns the error:

message: (#200) Requires either publish_actions permission, or manage_pages and publish_pages as an admin with sufficient administrative permission" type:"OAuthException" code:200

My questions:

• Is there something I'm missing to the get the app "LIVE" with appropriate access permissions to publish?
• How can I avoid FB review (I'm the administrator of the app and also the administrator of the business page)?

Answer 1

"Is there something I'm missing to the get the app "LIVE" with appropriate access permissions to publish?"

You need to pass a FB review which is not easy. Actually, it is now about impossible as Facebook says "On August 1st, 2018, the Live API publish_actions permission, which allows an app to publish on behalf of its Users, will be reserved for approved partners. In the coming weeks, a new permission model that allows apps to publish Videos to their User's Groups and Timelines will be announced" at https://developers.facebook.com/docs/graph-api/changelog/breaking-changes

"How can I avoid FB review (I'm the administrator of the app and also the administrator of the business page)?"

You used to not need a FB review for this case but they seem to have changed their rules recently. So you used to only need a FB review to do stuff for users who didn't create the app. In fact, at the moment, it is failing for an app in development mode as well which is real annoying. (They changed their rules again 13 hours go.)