# How to reassign students to units they may have done at another time and clear old data? **URL:** \ **Category:** CS Principles\ **Tags:** csp-unit-1\ **Created:** [August 6, 2021, 1:15am UTC](https://forum.code.org/t/how-to-reassign-students-to-units-they-may-have-done-at-another-time-and-clear-old-data/34956 "2021-08-06T01:15:23Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![marciatorgrude](https://avatars.discourse-cdn.com/v4/letter/m/5f8ce5/32.png) [@marciatorgrude](https://forum.code.org/u/marciatorgrude)\ **Post date:** [August 6, 2021, 1:15am UTC](https://forum.code.org/t/how-to-reassign-students-to-units-they-may-have-done-at-another-time-and-clear-old-data/34956/1 "2021-08-06T01:15:23Z")
I have a few students who will be in my new AP CSP course who have experienced some of the CSP units previously. How can I remove all entries these students have added so they can start fresh for the AP course? ---
**Author:** ![sdedwards](https://avatars.discourse-cdn.com/v4/letter/s/e95f7d/32.png) [@sdedwards](https://forum.code.org/u/sdedwards)\ **Post date:** [August 9, 2021, 6:37pm UTC](https://forum.code.org/t/how-to-reassign-students-to-units-they-may-have-done-at-another-time-and-clear-old-data/34956/2 "2021-08-09T18:37:26Z")
From what I’ve researched, you can not remove activities the students have already done. [Code.Org](http://Code.Org) has no way to do this. We wanted to reset an entire course for those who failed and are trying again. They have to use a different email to start over…Yes they can go back and look… ---
**Author:** ![AndreaRobNott](https://sea2.discourse-cdn.com/flex016/user_avatar/forum.code.org/andrearobnott/32/4871_2.png) [@AndreaRobNott](https://forum.code.org/u/AndreaRobNott)\ **Post date:** [August 10, 2021, 8:23pm UTC](https://forum.code.org/t/how-to-reassign-students-to-units-they-may-have-done-at-another-time-and-clear-old-data/34956/3 "2021-08-10T20:23:08Z")
Hi, @marciatorgrude! While it is currently not possible to remove or delete student progress in a course, their progress persists only within a version. Therefore, assigning your students to the most recent version of the course should start them with fresh levels. Happy computing, Andrea ---
**Author:** ![marciatorgrude](https://avatars.discourse-cdn.com/v4/letter/m/5f8ce5/32.png) [@marciatorgrude](https://forum.code.org/u/marciatorgrude)\ **Post date:** [August 11, 2021, 12:24am UTC](https://forum.code.org/t/how-to-reassign-students-to-units-they-may-have-done-at-another-time-and-clear-old-data/34956/4 "2021-08-11T00:24:01Z")
Excellent! We will be moving to 21-22 this year! Thanks