Call a ECC Tcode from a Web Application

Hi,

I am new to Dynpro and need some help on one of the business requirements.

The requirement is to call a transaction code in ECC when the user clicks on a button on a web page( Non SAP). Apart from calling the transaction I also need to pass on the values from the web page to the called transaction. Once the user is in ECC system the values need to be passed onto the first screen of the t code without which he cannot move onto the next screen. When user hits enter after filling the values on first screen the next page opens up and the remaining values need to be passed in this screen.

Thanks for your help and support.

Thanks,

Anuj