Manage Product Entitlement from Service - Query Product API Query Result is Empty

[ordbird]

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The server-side request to obtain all products owned by the user can be called successfully, but the result will not contain any items.
Return results: {"items":[]}

Document Details

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• ID: ea910a17-224b-95a9-5baa-b119a9362764
• Version Independent ID: 407c87b4-7506-8b83-e646-012cc13948a6
• Content: Query for products - Microsoft Store
• Content Source: uwp/monetize/query-for-products.md
• Product: uwp
• Technology: publish
• GitHub Login: @MatchaMatch
• Microsoft Alias: mikben

[DanielZanchi]

I am having the same issue:
calling this: https://purchase.mp.microsoft.com/v8.0/b2b/recurrences/query
passing b2bKey of different users always returns an empty array:
{ "items": [] }