ECC6 add a catalog in list of catalog window

Hi

I just added config to display the catalog button in Ecc6, me51n transaction. material - manageemnt - purchasing - env data - web service id and services

We receive a catalog list popup, how can we add entries in the list?

I did not put any thing in the web service list

sequence no

name of param for web service

value of parameter of web service

regards

DJ