Student drops and transfers in Sakai® are not synced to WebAssign. Transfer students between sections in WebAssign before transferring them in Sakai.
If you transfer a student first in Sakai, you might not be able to transfer their work in WebAssign.
For advanced integrations, scores for transferred work might not automatically sync to Sakai. If not, the transferred student should re-open an assignment from Sakai to trigger the sync.