INTERFACE {{p}}if_credit_check PUBLIC.
  TYPES ty_reason TYPE c LENGTH 10.
  TYPES ty_amount TYPE p LENGTH 11 DECIMALS 2.
  CONSTANTS:
    BEGIN OF c_reason,
      ok        TYPE ty_reason VALUE 'OK',
      age       TYPE ty_reason VALUE 'AGE',
      income    TYPE ty_reason VALUE 'INCOME',
      open_plan TYPE ty_reason VALUE 'OPEN_PLAN',
      limit     TYPE ty_reason VALUE 'LIMIT',
    END OF c_reason.
  METHODS check
    IMPORTING iv_age          TYPE i
              iv_income       TYPE ty_amount
              iv_open_plans   TYPE i
              iv_order_amount TYPE ty_amount
    RETURNING VALUE(rv_reason) TYPE ty_reason.
ENDINTERFACE.