Facebook: (#100) Tried accessing nonexisting field (comments) on node type (Page)

Hi helviobrito,

Based on my test, we may need to get all posts first, then expand the object_link > expand object_link.connections > expand object_link.connections.comments to get comments for each post. The M query below is for your reference. :smileyhappy:

let
    Source = Facebook.Graph("https://graph.facebook.com/v2.8/microsoftbi/posts?limit=100"),
    #"Expanded object_link" = Table.ExpandRecordColumn(Source, "object_link", {"connections"}, {"object_link.connections"}),
    #"Expanded object_link.connections" = Table.ExpandRecordColumn(#"Expanded object_link", "object_link.connections", {"comments"}, {"object_link.connections.comments"}),
    #"Expanded object_link.connections.comments" = Table.ExpandTableColumn(#"Expanded object_link.connections", "object_link.connections.comments", {"created_time", "from", "message", "id", "object_link"}, {"object_link.connections.comments.created_time", "object_link.connections.comments.from", "object_link.connections.comments.message", "object_link.connections.comments.id", "object_link.connections.comments.object_link"})
in
    #"Expanded object_link.connections.comments"

Regards