POST Enroll a user returning "message": "No parameters given"

[Flib]

Hi, I'm new at API was able to implement some calls put I'm having a problem with this the Enroll a user.

I'm receiving   "message": "No parameters given"

This is my POSTn to that I'm using SIS ids....

{

    "uri": "https://-----.instructure.com/api/v1/courses/sis_course_id:51/enrollments",

    "method": "POST",

    "headers": {

        "Authorization": "-------",

        "Accept": "*/*",

        "Host": "-----.instructure.com",

        "Accept-Encoding": "gzip, deflate, br",

        "Connection": "keep-alive"

    },

    "body": {

        "enrollment": {

            "sis_user_id": "1",

            "enrollment_state": "active",

            "notify": false,

            "limit_privileges_to_course_section": true,

            "role_id": 3,

            "created_at": "2021-11-04T15:57:07.0300054Z",

            "start_at": "2021-11-04",

            "end_at": "2021-11-18"

        }

    }

}

I appreciate any help.

[Flib · Accepted solution]

Solved:

This is the correct way to inform sis_user_id in the Body:

"user_id": "sis_user_id:1"

It's wrong on the API Test page. Should be fixed