Can we enroll students with different credit units in a single course

Hello,

Is there a provision to enroll students in a course with different credit unit:

For example:

There is a course with 4 units, but there are some students who will be enrolled in the same course id and class number with 3 credit units.

is there any provision to enroll all students in a  single course id and class number with different credit units.

Regards,

Shah