Error When Adding a New Invoke Operation to a Version 5-Based Connection

You encounter the following error when trying to add a new invoke operation to an existing Adobe Sign Adapter connection that uses the version 5 APIs.

Error: Endpoint not supported with existing connection due to use of deprecated v5 APIs. 
Please create a new connection using the Adobe Sign v6 APIs.

Cause: This error occurs because new invoke operations are supported only for connections that use the Adobe Sign version 6 APIs. The Adobe Sign Adapter no longer allows you to add new operations to version 5-based connections.

Solution: Create a new connection using Adobe Sign version 6 API support, and use that connection to configure new invoke operations. You can continue to view or edit existing operations in version 5-based connections, but cannot add new ones.