SAP LTSK_TASK_LSD_CALC Function Module for Calculate task's Latest Starting Date (LSD)

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LTSK_TASK_LSD_CALC is a standard ltsk task lsd calc SAP function module available within SAP R/3 or S/4 Hana systems, depending on your version and release level. It is used for Calculate task's Latest Starting Date (LSD) 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 ltsk task lsd calc FM, simply by entering the name LTSK_TASK_LSD_CALC into the relevant SAP transaction such as SE37 or SE38.

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

Function LTSK_TASK_LSD_CALC 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 'LTSK_TASK_LSD_CALC'"Calculate task's Latest Starting Date (LSD)
  EXPORTING
   I_LOCAT =  "Site
   I_SERVICE_CALLER =  "Calling service

TABLES
   IT_TASK_DUR_LSD =  "Tasks including duration due date & LSD

EXCEPTIONS
   LSD_CALC_FAILED = 1 

.

IMPORTING Parameters details for LTSK_TASK_LSD_CALC

I_LOCAT - Site

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

I_SERVICE_CALLER - Calling service

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

TABLES Parameters details for LTSK_TASK_LSD_CALC

IT_TASK_DUR_LSD - Tasks including duration due date & LSD

Data type: LTRM_IT_TASK_DURATION
Optional: No
Call by Reference: Yes

EXCEPTIONS details

LSD_CALC_FAILED -

Data type:
Optional: No
Call by Reference: Yes

Copy and paste ABAP code example for LTSK_TASK_LSD_CALC 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 LTSK_TASK_LSD_CALC

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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