Classic KM REST API (FAOKA) POST blocked while Redwood API (FAKMR) works — Same user, same roles

I wanted to share my findings after spending significant time troubleshooting Knowledge Management REST API access on Oracle Fusion Service (tested on the Oracle demo environment).

Environment

• Oracle Fusion Service (Redwood UX)
• Newly created user assigned the Knowledge Author role
• User can successfully create and publish knowledge articles through the UI

Issue

I attempted to import knowledge articles using the classic Knowledge Management REST API endpoint:

POST /km/api/latest/content/importAuthorization: Basic <base64(username:password)>

Every request returned the following error:

<errorCode>OK-SEC0001</errorCode><title>User not allowed to perform operation.</title>

Despite the error, the same user was able to create articles through the application UI without any permission issues.