I am fetching “page_fans” from Facebook Graph API Insights. (..v19.0/pageid/insights/..)

The problem is that the API returns data with values of 1 “randomly?”.

#1: Example response with since/until parameters:

[
  { value: 20698, end_time: '2024-04-29T07:00:00+0000' },
  { value: 1, end_time: '2024-05-01T07:00:00+0000' },
  { value: 1, end_time: '2024-05-02T07:00:00+0000' },
  { value: 1, end_time: '2024-05-03T07:00:00+0000' },
  { value: 1, end_time: '2024-05-04T07:00:00+0000' },
  { value: 1, end_time: '2024-05-05T07:00:00+0000' },
  { value: 1, end_time: '2024-05-06T07:00:00+0000' },
  { value: 20700, end_time: '2024-05-07T07:00:00+0000' },
  { value: 1, end_time: '2024-05-08T07:00:00+0000' },
  { value: 1, end_time: '2024-05-09T07:00:00+0000' },
  { value: 1, end_time: '2024-05-10T07:00:00+0000' },
  { value: 1, end_time: '2024-05-11T07:00:00+0000' },
  { value: 1, end_time: '2024-05-12T07:00:00+0000' }
]

#2: Example response without since/until parameters:

[
  { value: 1, end_time: '2024-05-04T07:00:00+0000' },
  { value: 1, end_time: '2024-05-05T07:00:00+0000' }
]

#3: Example response with only since parameter:

In this response, it seems that the “value: 1” starts at 05.01., then in the case #1 it shows the correct page_fans on 05.07. again.

[
...
  { value: 20702, end_time: '2024-04-23T07:00:00+0000' },
  { value: 20700, end_time: '2024-04-24T07:00:00+0000' },
  { value: 20701, end_time: '2024-04-25T07:00:00+0000' },
  { value: 20700, end_time: '2024-04-26T07:00:00+0000' },
  { value: 20698, end_time: '2024-04-27T07:00:00+0000' },
  { value: 20697, end_time: '2024-04-28T07:00:00+0000' },
  { value: 20698, end_time: '2024-04-29T07:00:00+0000' },
  { value: 1, end_time: '2024-05-01T07:00:00+0000' },
  { value: 1, end_time: '2024-05-02T07:00:00+0000' },
  { value: 1, end_time: '2024-05-03T07:00:00+0000' },
  { value: 1, end_time: '2024-05-04T07:00:00+0000' },
  { value: 1, end_time: '2024-05-05T07:00:00+0000' }
]

On 05.04. [Saturday], this exact fetch was working and I had the correct page_fans value of 20700.

In today’s fetch I’ve got “value: 1” for 05.04., afterwards.

I am courios why is this happening and is there any solution?

Tried to reproduce the problem with other metrics:

page_impressions_unique,page_post_engagement_page_views_total

The values were correct in the response.

Tried Graph API Explorer /w debug=all:

  "data": [
    {
      "name": "page_fans",
      "period": "day",
      "values": [
        {
          "value": 20698,
          "end_time": "2024-04-29T07:00:00+0000"
        },
        {
          "value": 1,
          "end_time": "2024-05-01T07:00:00+0000"
        },
        {
          "value": 1,
          "end_time": "2024-05-02T07:00:00+0000"
        },
        {
          "value": 1,
          "end_time": "2024-05-03T07:00:00+0000"
        },
        {
          "value": 1,
          "end_time": "2024-05-04T07:00:00+0000"
        },
        {
          "value": 1,
          "end_time": "2024-05-05T07:00:00+0000"
        }
      ],
....}]

Tried the New Page Experience:

..id/&fields=followers_count,fan_count

The response is correct:

{
  "followers_count": 21282,
  "fan_count": 20700,
  "id": "***"
}

I can’t use this method, because I need to compare values based on dates. The New Page Experience can’t handle since dates.