STANDARD type of report returns empty data

Hello!

Any clues or guidance, please? I have already spent several days fighting with secret knowledge of App Store API connect and got to this point. But this one seems like I am stuck.

I call https://api.appstoreconnect.apple.com/v1/analyticsReports/r14-[my-specific-id]/instances and get empty data

{
  "data" : [ ],
  "links" : {
    "self" : "https://api.appstoreconnect.apple.com/v1/analyticsReports/r14-[my-specific-id]/instances"
  },
  "meta" : {
    "paging" : {
      "total" : 0,
      "limit" : 50
    }
  }
}

r14-[my-specific-id] is the id I got from calling https://api.appstoreconnect.apple.com/v1/analyticsReportRequests/[another-specific]/reports.

r14-[my-specific-id] is "App Store Discovery and Engagement Standard" according to the response from /reports endpoint.

Yes, I know, that it is a valid case for DETAILED reports to get empty data due to Apple Privacy thresholds. But the report I am trying to download is STANDARD (at least, it is what the name the report ("App Store Discovery and Engagement Standard") states in /reports end point response).

Basic hygiene checks:

  1. I do have numbers in App Store UI in Analytics tab for this report
  2. Out of all reports returned by /reports the greatest majority of reports return empty data but SOME reports return data properly (unfortunately, not the ones I need)
  3. Enough time has passed: I have submitted request for ONGOING report 3 calendar days ago, it got executed within 24 hours, and it is already 2 full calendar days passed since execution of my request, meaning 8am P.T. has passed two times since ONGOING equest was fulfilled

Any suggestions, ideas, clues, please?

(Apple, why getting simple data can become such a quest?)

Okay, so, right now I checked again and I see data available today for 01.04, which gives three calendar days lag for the data to appear in API.

Is this data appearance lag or am I doing something wrong?

Getting data with a three days lag is not nice, to be honest.

Okay, and for the data for 01.04 I gett 500 error from apple

		"status": "500",
		"code": "UNEXPECTED_ERROR",
		"title": "An unexpected error occurred.",
		"detail": "An unexpected error occurred on the server side. If this issue continues, contact us at https://developer.apple.com/contact/."
	}]

: )

Apple, I am speechless ...

STANDARD type of report returns empty data
 
 
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