Overview: This steps will help you a lot for checking Purchasing Catalog Categories which are defined in your client Oracle Fusion system
Step1: Click on ‘Setup and Maintenance’ from the right top

Step2: Click on menu bar on right side

Step3: Click on Search option from the menu

Step4: Type ‘Functional Area Catalog’ and click on search button

Step5: Click on ‘Manage Functional Area Catalogs’ from the search result

Step6: Click on ‘Purchasing Catalog’ from the catalog name

Step7: Click on Expand arrow to see the list of Catalog Categories Name
