You can track changes in a catalog. This is dependent on the catalog type configuration. To check the configuration, go to transaction /ESAPLC/LCATCUST. In Basic Settings, choose Define product catalogs→Define product catalog types.
The list of product catalog types will be displayed. From the list of purchasing documents, select your catalog type and choose Advanced Settings. You will then see the following screen.

You can use the No Change Documents checkbox to control how changes are tracked in your catalog. By default, this box is unchecked, meaning the system tracks all changes. If you select it, tracking will be disabled.
To view your change history, return to the catalog content, right-click on a catalog area and select Display Changes. This opens a menu where you can choose the specific types of changes you want to see. Once you’ve made your selections, choose Apply to view the results in a detailed table.