1. Go to Tcode: se81.
2. Expand to the area you are looking at, functionally speaking.
3. Select and press F9.
4. Now click on "Repository Infosys" button.
5. Now you will see a tree form where you can see all the objects (not only exits) under that area. To only see the exits that come under this application;
6. Expand Environment->customer Enhancement->customer enhancement.
7. Double click on Customer enhancement.
8. Execute the selection screen. You will see all the cust.exits that come under your application
9. Double click on the required exit; you can see all the exits that come under that enhancement.