How to connect Sanka and Salesforce

② Map the Salesforce fields to Sanka properties.
③ Note! Before importing into Sanka, make sure the Salesforce field's "Field-Level Security" settings have both "Visible" and "Read-Only" checked as needed. If they are not enabled, the fields will not show up in property or association mapping.
④ After mapping, click Import to complete the import.
We can't authenticate you because of an OAuth error. For more information, contact your Salesforce administrator.
OAUTH_APPROVAL_ERROR_GENERIC : An unexpected error occurred during authentication. Please try again.
If you see an error like the above, check your system administrator's restrictions and make sure the following permissions are enabled:
135.149.17.191, 74.226.178.5, 135.149.42.83