SAP FIRST_DAY_IN_PERIOD_GET Function Module for Date of first day determined for period and fiscal year

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FIRST_DAY_IN_PERIOD_GET is a standard first day in period get SAP function module available within SAP R/3 or S/4 Hana systems, depending on your version and release level. It is used for Date of first day determined for period and fiscal year processing and below is the pattern details for this FM, showing its interface including any import and export parameters, exceptions etc. there is also a full "cut and paste" ABAP pattern code example, along with implementation ABAP coding, documentation and contribution comments specific to this or related objects.

See here to view full function module documentation and code listing for first day in period get FM, simply by entering the name FIRST_DAY_IN_PERIOD_GET into the relevant SAP transaction such as SE37 or SE38.

Function Group: ADAT
Program Name: SAPLADAT
Main Program: SAPLADAT
Appliation area:
Release date: N/A
Mode(Normal, Remote etc): Normal Function Module
Update:

Function FIRST_DAY_IN_PERIOD_GET pattern details

In-order to call this FM within your sap programs, simply using the below ABAP pattern details to trigger the function call...or see the full ABAP code listing at the end of this article. You can simply cut and paste this code into your ABAP progrom as it is, including variable declarations.

CALL FUNCTION 'FIRST_DAY_IN_PERIOD_GET'"Date of first day determined for period and fiscal year
  EXPORTING
   I_GJAHR =  "Fiscal year
*  I_MONMIT = 00 "Mid-month in the case of half mont
   I_PERIV =  "Period version
   I_POPER =  "Fiscal period

 IMPORTING
   E_DATE =  "First calendar day in the fiscal p

EXCEPTIONS
   INPUT_FALSE = 1    T009_NOTFOUND = 2    T009B_NOTFOUND = 3 

.

IMPORTING Parameters details for FIRST_DAY_IN_PERIOD_GET

I_GJAHR - Fiscal year

Data type: T009B-BDATJ
Optional: No
Call by Reference: No ( called with pass by value option)

I_MONMIT - Mid-month in the case of half mont

Data type: GJVAR-MONMIT
Default: 00
Optional: Yes
Call by Reference: No ( called with pass by value option)

I_PERIV - Period version

Data type: T009B-PERIV
Optional: No
Call by Reference: No ( called with pass by value option)

I_POPER - Fiscal period

Data type: T009B-POPER
Optional: No
Call by Reference: No ( called with pass by value option)

EXPORTING Parameters details for FIRST_DAY_IN_PERIOD_GET

E_DATE - First calendar day in the fiscal p

Data type: SY-DATUM
Optional: No
Call by Reference: No ( called with pass by value option)

EXCEPTIONS details

INPUT_FALSE - WRONG INPUT VALUES

Data type:
Optional: No
Call by Reference: No ( called with pass by value option)

T009_NOTFOUND - PERIOD VARIANT NOT IN TABLE

Data type:
Optional: No
Call by Reference: No ( called with pass by value option)

T009B_NOTFOUND - PERIOD VARIANT FOR FISCAL YEAR

Data type:
Optional: No
Call by Reference: No ( called with pass by value option)

Copy and paste ABAP code example for FIRST_DAY_IN_PERIOD_GET Function Module

The ABAP code below is a full code listing to execute function module POPUP_TO_CONFIRM including all data declarations. The code uses the original data declarations rather than the latest in-line data DECLARATION SYNTAX but I have included an ABAP code snippet at the end to show how declarations would look using the newer method of declaring data variables on the fly. This will allow you to compare and fully understand the new inline method. Please note some of the newer syntax such as the @DATA is not available until a later 4.70 service pack (SP8), which i why i have stuck to the origianl for this example.

ABAP code using 7.40 inline data declarations to call FM FIRST_DAY_IN_PERIOD_GET

The below ABAP code uses the newer in-line data declarations. This allows you to see the coding differences/benefits of the later inline syntax. Please note some of the newer syntax below, such as the @DATA is not available until 4.70 EHP 8.

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