SAP IBAPI_R_CHECK_PREDECESSOR Function Module for NOTRANSL: checks the changing of a predecessor activity

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IBAPI_R_CHECK_PREDECESSOR is a standard ibapi r check predecessor SAP function module available within SAP R/3 or S/4 Hana systems, depending on your version and release level. It is used for NOTRANSL: checks the changing of a predecessor activity 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 ibapi r check predecessor FM, simply by entering the name IBAPI_R_CHECK_PREDECESSOR into the relevant SAP transaction such as SE37 or SE38.

Function Group: IBAPI_R_3
Program Name: SAPLIBAPI_R_3
Main Program:
Appliation area: C
Release date: N/A
Mode(Normal, Remote etc): Normal Function Module
Update:

Function IBAPI_R_CHECK_PREDECESSOR 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 'IBAPI_R_CHECK_PREDECESSOR'"NOTRANSL: checks the changing of a predecessor activity
  EXPORTING
   I_AFABD_OLD =  "Network: Dialog table for AFAB
   I_AFABD_NEW =  "Network: Dialog table for AFAB

TABLES
*  E_MESSAGE_TAB =  "Message collector

EXCEPTIONS
   NOT_OK = 1 

.

IMPORTING Parameters details for IBAPI_R_CHECK_PREDECESSOR

I_AFABD_OLD - Network: Dialog table for AFAB

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

I_AFABD_NEW - Network: Dialog table for AFAB

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

TABLES Parameters details for IBAPI_R_CHECK_PREDECESSOR

E_MESSAGE_TAB - Message collector

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

EXCEPTIONS details

NOT_OK -

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

Copy and paste ABAP code example for IBAPI_R_CHECK_PREDECESSOR 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 IBAPI_R_CHECK_PREDECESSOR

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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