You can delete the tentative structure before apply it to the current environment.
By deleting the tentative structure, you can do the following:

• Adding, changing, deleting, and reordering the current organizations
• Importing file to add, update, delete the current organizations

1. Click the Administration menu icon (gear icon) in the header.

2. Click System settings.

3. Select "Basic system administration" tab.

4. Click Users.

5. Click Tentative reorganization.

6. On the tentative reorganization screen, click Delete tentative structure.

   

7. Click Yes on the screen to delete tentative structure.

8. Wait a while and refresh the page.

9. Confirm that "Create" is displayed on the tentative reorganization screen.