Query on appropriate return result of submissions API containing Unpublished Assignment ID

[kit1]

Hello Canvas Developers,

Good day!

I would like to clarify if the return result of the submissions API with assignment_id parameter containing the ID of an unpublished assignment is correct. For example:

/api/v1/courses/${COURSE_ID}/students/submissions?assignment_ids[]=${UNPUBLISHED_ASSIGNMENT_ID}&student_ids[]=all

I tried the above status. It is returning an "Invalid assignment ids requested." (Actual behaviour)

I believe however that the assignment ID that I entered is valid, and should return no results (Expected behaviour) as there are no submissions, but the assignment ID I provided in the assignment_ids[] param is valid.

{

"error": "invalid assignment ids requested"

}

Looking forward to your point of view.

Thank you and kind regards,

Kit