Using user_add function from remote Framework

I have created a client, "Dan M test", on my ISPConfig machine. This client was assigned client #462. I am calling the SOAP interface with:

$params = array ( 'sid' => $session_id,
'module' => 'web',
'function' => 'web_get',
'params' => array( web_title => 'varmints.us', // Reseller1, admin, all
));

and getting back:
Array
(
[web_title] => varmints.us
[doc_id] => 382
[doctype_id] => 1013
[web_host] => www
[web_domain] => varmints.us
<snipped for space>
[web_ip] => 69.66.1.24
[server_id] => 1
[optionen_mysql_user] => web382
[optionen_mysql_passwort] =>
<snipped for space>
[web_id] => 382
)

I also defined an e-mail address, [email protected]. I can fetch this user's settings using:
$params = array ( 'sid' => $session_id,
'module' => 'web',
'function' => 'user_get',
'params' => array( user_username => 'varmints.us_dan', // Reseller1, admin, all
));
which returns:
Array
(
[doc_id] => 362
[doctype_id] => 1014
[user_username] => varmints.us_dan
[user_passwort] =>
<snipped for space>
[user_name] => Dan M
[status] =>
<snip>
[user_id] => 362
)

Now I am trying to add an e-mail address, [email protected]. The code I'm trying to use is:
$params = array( 'sid' => $session_id, 'module' => 'web',
'function' => 'user_add',
'params' => array(
web_id => 382,
user_username => 'varmints.us_test',
user_name => 'test',
user_email => 'test',
user_passwort => 'test',
user_speicher => 100,
user_mailquota => 100 ,
user_admin => 0
));
When I run this code it does not produce an error message. However, when I log into ISPConfig and look at varmints.us I only see the [email protected] user. I get the same result if I replace web_id => 382 with web_title => 'varmints.us'.

It appears that I'm misunderstanding something about the user_add function. Could someone please tell me what I'm doing wrong?

 

SOAP interface not adding user

No, there's not.
mysql> select user_username, user_name from isp_isp_user where user_username like 'varmint%';
+-------------------+-----------+
| user_username | user_name |
+-------------------+-----------+
| varmints.info_dan | My User |
| varmints.us_brian | Brian |
+-------------------+-----------+
2 rows in set (0.00 sec)

That 2nd user was added by one of my coworkers for testing purposes.

 

An additional lead...

I am looking now at ispconfig_web.lib.php. In function user_add I see that the fields user_speicher and user_mailquota must be defined or an error mesage will be generated.

I added those fields to my call, and I'm still not seeing the user added. The new user is not in isp_isp_user.

I also put together a script to add a client. That to does not report any errors, but doesn't add the client. It looks like I can do lists and gets of the various categories fo data, but can't add records via the Remoting Framework.