def METHOD_NAME(bfd_bene, bene_count, effective_date=DEFAULT_EFFECTIVE_DATE):
    sls_bene = {
        "challengeQuestionAndAnswers": [
            {
                "question": "What is the nick name of your grandmother?",
                "answer": DEFAULT_MIDDLE_NAME,
            }
        ],
        "username": "BBUser" + bene_count,
        "password": "PW" + bene_count + "!",
        "effectiveDate": effective_date,
        "effectiveDatePart": DEFAULT_EFFECTIVE_DATE_PART,
    }
    for key in SLS_FIELD_MAPPING:
        if isinstance(SLS_FIELD_MAPPING[key], str):
            sls_bene[SLS_FIELD_MAPPING[key]] = bfd_bene[key]
        else:
            sls_bene[SLS_FIELD_MAPPING[key]["name"]] = SLS_FIELD_MAPPING[key]["value"](
                bfd_bene[key]
            )
    return sls_bene