Facebook Chart APIs and Insight statistics do not match / invalid

Question

We are developing an application using the Facebook API to track indicators for our page over time, for example, the number of shares of posts on the page.

We get the number of shares, comments and comments from the mail objects in our page feed and then summarize them for the reporting period - the request has the following form

{page-id}/posts?fields=shares,created_time,likes.limit(1).summary(true),comments.limit(1).summary(true)&since={start-date}&until={end-date} 

However, the numbers we get from this request do not match the numbers displayed on the Business Manager Insights page. For example, in October 2016, the value of the Count API for comments for comments is more than double that indicated in the data. In addition, the numbers do not always coincide with those that we get from manual counting of comments, etc. Directly from the posts on our page.

Does anyone have an explanation of how these inconsistencies can arise?

Answer 1

Check out this article. “Error: When estimating the total number of people who saw at least one of the pages as pages in a seven- or 28-day period, Facebook did not remove duplication of this audience by reporting the organic reach of the pages on the Page Statistics toolbar. In other words, if someone saw the post on Monday on Monday, and then another post from this page on Tuesday, Facebook considered this person as two people. " http://marketingland.com/heres-itemized-list-facebooks-measurement-errors-date-200663