To delete the document category, you must have this permission enabled for your user level. For more details, check out this article.
To delete the document category, follow the steps below:
Go to the New Document menu and select the category you want to delete in the Category field.
Next to the category name, select the pencil icon to access the category registration screen.
Next, the screen with the category registration information will open. To delete it, click on Delete, if you want to exit this screen, click on Cancel.
The system will ask on the next screen if you really want to delete the document category. Click on Delete category to proceed with the deletion. To exit this screen, click on Cancel.
If there is a document registered under the category, the system will inform you that deletion is not possible. In this case, you must first change the category of the document in question. For more details, access this article.
But if there are no documents registered under the category, it will be possible to delete it. The system will then inform you that the deletion has been completed.
Then just select the Back option, located at the bottom of the page, to return to the last page accessed.