Thanks for the great playfab solution.
I've followed https://docs.microsoft.com/en-us/gaming/playfab/features/commerce/economy/non-receipt-payment-processing on xsolla part.
When I opened url using "https://sandbox-secure.xsolla.com/paystation3/?access_token=" + result.ProviderToken
It redirected to https://sandbox-secure.xsolla.com/paystation3/desktop/virtualitem/?access_token=oes7P4JAkwhWqS2UQ7tE7oJB3WIfyq1P&preferences=eyJpdGVtUHJvbW90aW9ucyI6IltdIn0-&sessional=eyJoaXN0b3J5IjpbWyJ2aXJ0dWFsaXRlbSIsdHJ1ZV1dfQ-- but without any items or vc inside the page.
My items and vc are imported using xsolla webapp https://publisher.xsolla.com/317630/projects/195974/storefront/catalog-management/connectors/playfab/import
I did see my items listed inside the webpage builder from xsolla, but have tried many ways still cannot see any items inside unity opened xsolla paystation page.
Did contact xsolla but no response.
Anyone has any solution or links to share for me? Thanks :)