I added items from one test user account and they are currently visible on sandbox but for placing an order I first need to initiate a session. But on hitting initiatecheckoutsession and initiateguestcheckoutsession in these both I am getting 403(permission denied). Even I have scope already listed in scopes list (https://api.ebay.com/oauth/api_scope/buy.guest.order) for my sandbox account.
help needed in placing order
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