Find the last date of month and year

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There are standard ways to determine the last date of a given month and year in ABAP, such as:

  • Class / Method: CL_FITV_UTIL=>LAST_DAY_OF_MONTH
  • Function Module: LAST_DAY_OF_MONTHS
However, these utilities are not available in all SAP products and releases. Therefore, it can be useful to implement your own solution. This can be done by taking advantage of algebraic operations on variables of type D (date).
See the sample code below:

DATA:
  lv_month TYPE n LENGTH 2 VALUE '02',
  lv_year  TYPE n LENGTH 4 VALUE '2025'.

DATA:
  lv_new_month TYPE n LENGTH 2,
  lv_new_year  TYPE n LENGTH 4,
  lv_date      TYPE d.

lv_new_month = lv_month + 1.

IF lv_new_month = 13.
  lv_new_month = 1.
  lv_new_year = lv_year + 1.
ELSE.
  lv_new_year = lv_year.
ENDIF.

lv_date = |{ lv_new_year }{ lv_new_month }01|.
lv_date = lv_date - 1.
WRITE: / lv_date.
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