We have used oAuth in our manage package. This package have oAuth flow and it works fine for all client except one.
When we call /services/oauth2/userinfo it returns
404 (not found) — No_Access User lacks proper access to organization or information
We are using system admin user to connect and other API calls are working fine.
Any one have come across this issue?
The Help page also list this error but the cause of it. https://help.salesforce.com/HTViewHelpDoc?id=remoteaccess_using_userinfo_endpoint.htm