Okta Mappings API not working

Hello, I am trying to use okta mappings API but I am getting error E0000015.

Here is the full request-response

"errorCode": "E0000015",

"errorSummary": "You do not have permission to access the feature you are requesting",

"errorLink": "E0000015",

"errorId": "oaewM-GKizdSsuXE_KkDUTG0w",

"errorCauses": []

I am using the okta 30-day trial version.

Can you open a support case through the Okta Help Center? Your org seems to be missing the feature that would give you permissions to use this endpoint.