Bbp_create_contact_person

[Diablo46]

Buenos días alguien que haya usado esa función para crear un usuario nuevo en sap que me diga que campos son obligatorios

CALL FUNCTION 'BBP_CREATE_CONTACT_PERSON'
EXPORTING
iv_partner1 = LO TENGO
iv_partner_guid1 = LO TENGO
is_data = is_data
is_data_person = TENGO FIRSTNAME Y LASTNAME
is_pers_addr = is_pers_addr
is_cont_addr = is_cont_addr
is_cont_addr3 = is_cont_addr3
is_password = LO TENGO
is_username = LO TENGO
is_logondata = is_logondata
is_userdefaults = is_userdefaults
iv_address_number = iv_address_number
iv_address_guid = iv_address_guid
iv_xxs_check = iv_xxs_check
iv_no_commit = iv_no_commit
iv_create_user = 'X'
iv_assign_user = 'X'
IMPORTING
ev_partner = ev_partner
ev_partner_guid = ev_partner_guid
ev_address_number = ev_address_number
ev_address_guid = ev_address_guid
ev_person_id = ev_person_id
ev_reference_guid = ev_reference_guid
TABLES
act_groups = act_groups
it_adtel = it_adtel
it_adfax = it_adfax
it_adsmtp = it_adsmtp
it_partner_roles = it_partner_roles
it_persmap = it_persmap
et_return = et_return
EXCEPTIONS
no_partner_data = 1
partner_mismatch = 2
error_creating_bupa = 3
username_missing = 4
password_missing = 5
error_creating_central_person = 6
error_assigning_cp_to_user = 7
error_message_passed = 8
activity_group_missing = 9
OTHERS = 10.
IF sy-subrc <> 0.
* MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
* WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.

No se que mas campo me faltan creo que puede ser el act_groups pero no estoy seguro. Algo de ayuda please,
Un saludo