"Error connecting to AdobeSign with response "Your product edition does not support account scopes" when integrating Adobe Sign with FYI

Issue
When integrating Adobe Sign with FYI, I am getting the following error:

• Error connecting to AdobeSign with response "Your product edition does not support account scopes".

Cause
Your current Adobe plan does not allow integrations using APIs, required to connect FYI with Adobe Sign.

Adobe Sign requires the Acrobat Sign Solutions plan with API access. For pricing and more details on this plan, you will need to contact Adobe directly. Refer to the Adobe Sign article https://www.adobe.com/au/sign/pricing/plans.html 

For information about the FYI integration, refer to Integration with Adobe Sign.

Note: An Acrobat Pro licence that includes Adobe Sign under an Adobe Enterprise subscription is not supported.