BAPI_BUPA_ROLE_ADD_2

Hello experts, how are you?

I am using the BAPI_BUPA_ROLE_ADD_2 function to extend a BP for the customer scenario, however, it is returning that the KNA1-CFOP field must be filled in, but it is not possible to pass this field in the function I am using. Would anyone know which BAPI I could use to insert this field?

Thank you for your help.