How to use API okc_contract_party_pub.update_k_party_role for update exsists "End Customer" party ro

Hi

I'm try to use Ap'i "okc_contract_party_pub.update_k_party_role" to update the End Customer party role and get x_return_status-U

Please your advice what else I need to send or other missing actions .

I send to API parameters :

v_cplv_rec.chr_id := P_OKC_HEADER_ID;v_cplv_rec.dnz_chr_id := P_OKC_HEADER_ID;v_cplv_rec.sfwt_flag := 'Y';v_cplv_rec.rle_code := 'END CUSTOMER';v_cplv_rec.jtot_object1_code := 'OKX_PARTY';v_cplv_rec.object1_id1 := v_install_at_party;v_cplv_rec.object1_id2 := '#';

v_cplv_rec.last_update_login := okc_api.g_miss_NUM;