SAP SWA_MESSAGES_INITIALIZE Function Module for
SWA_MESSAGES_INITIALIZE is a standard swa messages initialize SAP function module available within SAP R/3 or S/4 Hana systems, depending on your version and release level. It is used to perform a specific ABAP function and below is the pattern details, 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 swa messages initialize FM, simply by entering the name SWA_MESSAGES_INITIALIZE into the relevant SAP transaction such as SE37 or SE38.
Function Group: SWA0
Program Name: SAPLSWA0
Main Program: SAPLSWA0
Appliation area:
Release date: N/A
Mode(Normal, Remote etc): Normal Function Module
Update:

Function SWA_MESSAGES_INITIALIZE 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 'SWA_MESSAGES_INITIALIZE'".
EXPORTING
* COLLECT_AND_SEND = ' ' "Collect at the same time and output if X
* RESET = 'X' "Reset the collected messages if X
* LINE_FROM = '000' "Restrict messages to be reset
* LINE_TO = '999' "Restrict messages to be reset
IMPORTING Parameters details for SWA_MESSAGES_INITIALIZE
COLLECT_AND_SEND - Collect at the same time and output if X
Data type:Default: SPACE
Optional: Yes
Call by Reference: No ( called with pass by value option)
RESET - Reset the collected messages if X
Data type:Default: 'X'
Optional: Yes
Call by Reference: No ( called with pass by value option)
LINE_FROM - Restrict messages to be reset
Data type: SWAMESG-ZEILEDefault: '000'
Optional: Yes
Call by Reference: No ( called with pass by value option)
LINE_TO - Restrict messages to be reset
Data type: SWAMESG-ZEILEDefault: '999'
Optional: Yes
Call by Reference: No ( called with pass by value option)
Copy and paste ABAP code example for SWA_MESSAGES_INITIALIZE 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.| DATA: | ||||
| lv_collect_and_send | TYPE STRING, " SPACE | |||
| lv_reset | TYPE STRING, " 'X' | |||
| lv_line_from | TYPE SWAMESG-ZEILE, " '000' | |||
| lv_line_to | TYPE SWAMESG-ZEILE. " '999' |
|   CALL FUNCTION 'SWA_MESSAGES_INITIALIZE' " |
| EXPORTING | ||
| COLLECT_AND_SEND | = lv_collect_and_send | |
| RESET | = lv_reset | |
| LINE_FROM | = lv_line_from | |
| LINE_TO | = lv_line_to | |
| . " SWA_MESSAGES_INITIALIZE | ||
ABAP code using 7.40 inline data declarations to call FM SWA_MESSAGES_INITIALIZE
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.| DATA(ld_collect_and_send) | = ' '. | |||
| DATA(ld_reset) | = 'X'. | |||
| "SELECT single ZEILE FROM SWAMESG INTO @DATA(ld_line_from). | ||||
| DATA(ld_line_from) | = '000'. | |||
| "SELECT single ZEILE FROM SWAMESG INTO @DATA(ld_line_to). | ||||
| DATA(ld_line_to) | = '999'. | |||
Search for further information about these or an SAP related objects