A request XML packet deleting a user from the database includes the del-db-user operation node:
<packet version="1.4.2.0">
<database>
<del-db-user>
¡
</del-db-user>
</database>
</packet>
The del-db-user node is presented by type DatabaseDelDBUserInputType (database_input.xsd), and its graphical representation is as follows:

Remarks
You can delete multiple users from the database using a single packet. Add as many del-db-user operations as the number of different users you want to delete from the database.
<database>
<del-db-user>
¡
</del-db-user>
...
<del-db-user>
¡
</add-db-user>
</database>
You can also delete all users from the different databases using this construction.
Note: Use the <filter/> parameter if you want to delete all users from all databases available for the sender.