A german webdeveloper called Yanduu is creating a webshop for me on the opencart webshopsystem. They were asking me for an API username/password/signature. I found the section in my paypal account settings on where to create the required authorizations. However, I do not know what to enter in the first field of the process when asked for the "API username". Is it the webshop developers name, my webshop ip address... ??? Whatever I tried i got the error message "Please enter the correct API user name" Thanx for your help!
