API Product custom fields not updating

[hcaz]

Hello,

I have WHMCS running and it all works fine, I have a load of products setup ect and orders procees okay. I have a script on the server that logges in using the WHMCS API to change the product user and password aswell as a custom feild. It works fine to update the username and password for the product it just does not update the cusom feild, i have even tried it as a seperate api call just for the custom feilds to no avail. Here is the different peices of code i have tried:

 

$postfields3["action"] = "updateclientproduct";
$postfields3["serviceid"] = "88"; //product ID
$postfields3["customfield[2]"] = "test";
print_r(sendRequest($postfields3)); //Says it worked successfully

 

$postfields3["action"] = "updateclientproduct";
$postfields3["serviceid"] = "88"; //product ID
$postfields3["customfields"] = base64_encode(serialize(array("2"=>"test")));
print_r(sendRequest($postfields3)); //Says it worked successfully

 

I have tried other combinations of different numbers to see if it was just that custom field, as-well as using the field name but nothing works the field just says at its set value.

 

Thanks for any help because i have tried everything i can think of and and at a loss,

Zachary