Hi, We have been using UWP collections query API (which is explained in this document: https://learn.microsoft.com/en-us/windows/uwp/monetize/query-for-products ), and recently, we're intermittently getting unknown errors from it. I think the error response is not originating from our end, these are the reason. we are using the same code & configuration on calling the API for over a year but started to receive this kind of error message only since about two weeks ago. I've made a test script that repeatedly calls the API with the interval of 0.5 seconds, with the same request bodies and Azure AD token. It mostly returned a normal response, but occasionally (about 1 out of 20 requests) returned an error. And here is the full (inner) error message (body.innererror) { "code": "EntitlementsError", "data": [ "DisplayCatalogError", "An unknown error has occurred when calling DisplayCatalog.", "An unknown error occured." ], "details": [], "message": "Collections received an error from entitlements.", "source": "CollectionsFD" } I've tried to find any information about this kind of error, but that didn't work. Could you help us to find the cause of this issue? Thanks! Chung

[UWP] Getting Unknown DisplayCatalogError from Query for Product

Seungjae Chung 1

Hi,

We have been using UWP collections query API (which is explained in this document: https://learn.microsoft.com/en-us/windows/uwp/monetize/query-for-products), and recently, we're intermittently getting unknown errors from it.

I think the error response is not originating from our end, these are the reason.

we are using the same code & configuration on calling the API for over a year but started to receive this kind of error message only since about two weeks ago.
I've made a test script that repeatedly calls the API with the interval of 0.5 seconds, with the same request bodies and Azure AD token. It mostly returned a normal response, but occasionally (about 1 out of 20 requests) returned an error.

And here is the full (inner) error message (body.innererror)

{
"code": "EntitlementsError",
"data": [
"DisplayCatalogError",
"An unknown error has occurred when calling DisplayCatalog.",
"An unknown error occured."
],
"details": [],
"message": "Collections received an error from entitlements.",
"source": "CollectionsFD"
}

I've tried to find any information about this kind of error, but that didn't work.
Could you help us to find the cause of this issue?

Thanks!

Chung

Roy Li - MSFT 31,551 Reputation points Microsoft Vendor

2021-11-09T08:16:01.383+00:00

As you mentioned that the code works before over a year, have you changed your code recently? Is the still the same code that used to run correctly?
Seungjae Chung 1 Reputation point

2021-11-09T08:26:17.88+00:00

What I've meant was, we have not changed any of our code and configuration in over a year. So it's the same code we're using now and then.
Roy Li - MSFT 31,551 Reputation points Microsoft Vendor

2021-11-09T08:50:29.397+00:00

You mentioned that you've created a script to call this request and it works, so only in your app that you are getting the unknown error, right?
Seungjae Chung 1 Reputation point

2021-11-09T09:54:13.51+00:00

No. As I wrote above, when I called the API with my script, It mostly returned a normal response, but occasionally (about 1 out of 20 requests) returned an error.

So both in our app and the script, the requests are occasionally failing.
Roy Li - MSFT 31,551 Reputation points Microsoft Vendor

2021-11-10T06:51:53.973+00:00

Since you could get the correct response for most attempts, this issue should not be related to the code. It looks like a server issue. It's beyond the scope of forum support. I'd suggest you open a free support ticket here: Contact Us. Go to Contact us, find Non-Technical Support - Dashboard and choose CHAT NOW or SUBMIT AN INCIDENT. Then you could talk with the store team and ask them to check the status in the back end.
Seungjae Chung 1 Reputation point

2021-11-11T00:34:05.387+00:00

Thanks!