Does anyone know is it possible to enable SOAP API for Group and Professional editions with OAuth 2.0 (connected app) authentication?
I cannot find this info directly in the documentation. What stated is the following:
You can also request that a connected app be whitelisted to use the REST API in GE or PE organizations. --- This is only about REST.
SOAP based Web services can be enabled using an API token called a Client ID, which needs to be appended to your SOAP headers in integration calls. This special key enables your app to successfully make calls to GE/PE even if the customer does not have API access. --- It is not clear will SOAP API work with OAuth access token or only via direct credentials login.
Thanks in advance!