I'm working on integrating Canvas with another system, and I'd like to bring back an enrollment record ID from the other system and put it on the Canvas enrollment. Is sis_import_id an appropriate place, or is that supposed to be used for something else (and if so what)? Forgive my ignorance—I'm not a developer (using an iPaaS), and the other objects all have clearcut names (sis_user_id, sis_course_id, sis_section_id).