通过公司代码和日期，去对应的会计期间和年度函数：G_PERIOD_GET

CALL FUNCTION 'G_PERIOD_GET'

EXPORTING
      COMPANY                        = P_BUKRS
      DATE                           = LF_SPMON
      LEDGER                         = '0L'
    IMPORTING
      PERIOD                         = GS_SPMON-PERIOD    "期间
      YEAR                           = GS_SPMON-SPMONS    "年度
    EXCEPTIONS
      LEDGER_NOT_ASSIGNED_TO_COMPANY = 1
      PERIOD_NOT_DEFINED             = 2
      VARIANT_NOT_DEFINED            = 3
      PARAMETER_ERROR                = 4

OTHERS                         = 5.

IF SY-SUBRC <> 0.
    LEAVE LIST-PROCESSING.
  ENDIF.