Issue Retrieving Campaign ID (cid) in Microsoft Store app

I am encountering an issue with retrieving the CampaignId (cid) parameter programmatically in an application installed from a Microsoft Store following Create a custom app promotion campaign guide. To retrieve the CampaignId, I am using code provided in the mentioned guide, but sku.CollectionData.CampaignId is always empty.

I have tried both of url formats:

• https://www.microsoft.com/store/apps/skype/9wzdncrfj364?cid=custom\_campaign
• ms-windows-store://pdp/?PRODUCTID=9wzdncrfj364&cid=custom_campaign

Unfortunately, neither of them worked.

The application was published via Package Flight and via regular publishing with Direct Link availability mode. Tested both on Win10 and Win11 PCs.

I would greatly appreciate guidance on how to resolve this issue.

Thanks in advance for your assistance