Create a customer / debtor but cannot find the right BAPI

I have to create a customer / debtor from a Portal which is calling my RFC. So I checked many BAPI's and other function modules, but none of them could create the customer that I need. I also checked SDN and saw may tips, but it did not solve my problem (most BAPI's and function modules create only partial debtors, but I want to enter all the fields that I can enter on-line).

So I decided to it the BDC-way: fill in the fields and values in a table and then cal thel transaction XD01. But even this way I cannot enter all the fields that I need to enter. The strange thing is that a call transaction XD01 shows screens that are different from the screens that are shown when running XD01 on-line.

The fields that I cannot create when doing a call transaction XD01 in my RFC are: email address, mobile phone, comments and po box.

I still would like to find the BAPI that gives me the opportunity to enter ALL debtor fields. I am desperate, because I have tried so many options.

Any good ideas?

THANKS A LOT !

Ger Hemmes