Amplitude shows "idfa" and "adid" as null in raw payload

When I view the json for my events in Amplitude it shows idfa and adid as null, although we are sending those ids in our payload via http apis.

RAW Json

--------------

{
  "$insert_id": "89b828b9-b7a3-40be-acaf-5379a905354c",
  "$row_source": "realtime",
  "$schema": 12,
  "_time": 1625966110148,
  "adid": null,
  "amplitude_attribution_ids": [
    "64f3c30eb974ecdae63f596b63fe8406"
  ],
  "amplitude_event_type": null,
  "amplitude_id": 277790090847,
  "app": 312573,
  "city": "Dar es Salaam",
  "client_event_time": "2021-07-11T01:15:10.148",
  "client_upload_time": "2021-07-11T01:15:10.148",
  "country": "Tanzania",
  "data": {},
  "device_brand": null,
  "device_carrier": "VodaCom",
  "device_family": "Android",
  "device_id": "devic_id-0002",
  "device_manufacturer": null,
  "device_model": "Android",
  "device_type": "Android",
  "display_name": "Cart View",
  "dma": null,
  "event_id": 179180944,
  "event_properties": {},
  "event_time": "2021-07-11T01:15:10.148",
  "event_type": "Cart View",
  "group_properties": {},
  "groups": {},
  "idfa": null,
  "ip_address": "197.250.227.52",
  "is_attribution_event": false,
  "language": "English",
  "library": "http/2.0",
  "location_lat": null,
  "location_lng": null,
  "os": "14.4.1",
  "os_name": null,
  "os_version": "14.4.1",
  "paying": null,
  "platform": "Andriod",
  "region": "Dar es Salaam Region",
  "sample_rate": null,
  "server_received_time": "2021-07-11 01:15:10.148000",
  "server_upload_time": "2021-07-11T01:15:10.162",
  "session_id": -1,
  "start_version": "21.8.0",
  "timeline_hidden": false,
  "user_creation_time": "2021-07-11T01:15:09.47",
  "user_id": "user_id-010",
  "user_properties": {
    "Install Date": "2021-03-30",
    "Postal Code": "95035",
    "applOpenCounter": "123",
    "optedOut": "false",
    "userAgent": "WMT1H/21.8 iOS/14.4.1"
  },
  "uuid": "70200b50-e1e5-11eb-bded-02bc10515bc7",
  "version_name": "21.8.0"
}