Zoho Creator (URL Request Structure)

Hello,

I know I should really use the API forum area but it doesn't seem to receive as much attention as this one.

I'm currently building an application which interfaces with Zoho Creator. I am trying to add records using the REST API.

However, it does not seem to be working.

My URL takes the form of:

My application is definetly called 'Messages' and my Form is definetly called 'MessageForm'. Within this form is a field called 'User' that I wish to populate.

https://creator.zoho.com/api/xml/Messages/MessageForm/add/apikey=<api key>&ticket=<ticket>&User=<user>

<api key> = The API Key

<ticket> = Session Ticket

<user> = A variable containing a username

I submit this and receive a 500 Internal Server Error, am I doing something wrong or is there a known problem with this API?

Thanks,

Jord