Client Menu Reference : The Edit Menu : Delete
  
Delete
Deletes the selected records or categories from the catalog after confirmation of the action. (Disabled if no records or categories are selected, or if you don’t have the permission to delete the selected items.)
The confirmation dialog for deleting records offers two options: to delete the record only or to delete the record and its associated asset, too. This can not be undone. Make sure that you no longer need an asset or that you have a copy elsewhere before deleting one.
If you decided to have the asset deleted as well but the asset cannot be deleted (e.g. because it is read-only access), the record will not be deleted either. Note that records that represent assets stored on CDs will be deleted.
NOTE: Selecting multiple (more than five) items
The function is disabled, if you don’t have the permissions necessary to delete the selected items (either the catalog permission "item delete", or item-specific delete permissions). However, if more than five items are selected, the permissions are not checked upfront for performance reasons. In this case, the function remains active and can be evoked, but will result in an error message if the necessary permissions are missing.
NOTE: Deleting Related Assets
If the record to be deleted represents a preferred alternate, or a variant source or the master of a custom relation, you will get a warning that deleting the asset also will dissolve the asset relation. At this point you can either confirm or cancel the deletion process.