By default, Blackboard course shells close automatically 20 days after the course end date set in GUS.
1. On the Control Panel in your course, expand the Customization section and click Properties.
![Select Properties under Course Management, Customization.](https://educationaldevelopment.uams.edu/wp-content/uploads/sites/57/2023/06/SBS_Changing-Course_Dates-01.jpg)
2. Make sure the Make Course Available radio button is set to Yes.
![In the Set Availability section, select Yes for Make Course Available.](https://educationaldevelopment.uams.edu/wp-content/uploads/sites/57/2023/06/SBS_Changing-Course_Dates-02.jpg)
3. Scroll down to SET COURSE DURATION and enter your new Start Date and End Date.
![Under the Set Duration section, select the desired date](https://educationaldevelopment.uams.edu/wp-content/uploads/sites/57/2023/06/SBS_Changing-Course_Dates-03.jpg)
4. Click Submit at the bottom right of the page.
![Click Submit.](https://educationaldevelopment.uams.edu/wp-content/uploads/sites/57/2023/06/SBS_Changing-Course_Dates-04.jpg)