SAP FKK_FM_HEADER_COMPLETE Function Module for
FKK_FM_HEADER_COMPLETE is a standard fkk fm header complete 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 fkk fm header complete FM, simply by entering the name FKK_FM_HEADER_COMPLETE into the relevant SAP transaction such as SE37 or SE38.
Function Group: FKKFM_CHECKS
Program Name: SAPLFKKFM_CHECKS
Main Program: SAPLFKKFM_CHECKS
Appliation area:
Release date: N/A
Mode(Normal, Remote etc): Normal Function Module
Update:

Function FKK_FM_HEADER_COMPLETE 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 'FKK_FM_HEADER_COMPLETE'".
CHANGING
C_FKKKO = "Header Data for Open Item Accounting Document
TABLES
T_FKKOP = "Business Partner Items in Contract Account Document
T_FKKOPK = "G/L Account Items in Open Item Account Document
* T_FKKCL = "Clearing Items for Document in Contract Accounts Receivable and Payable
* T_FKKOP_CL = "
CHANGING Parameters details for FKK_FM_HEADER_COMPLETE
C_FKKKO - Header Data for Open Item Accounting Document
Data type: FKKKOOptional: No
Call by Reference: Yes
TABLES Parameters details for FKK_FM_HEADER_COMPLETE
T_FKKOP - Business Partner Items in Contract Account Document
Data type: FKKOPOptional: No
Call by Reference: No ( called with pass by value option)
T_FKKOPK - G/L Account Items in Open Item Account Document
Data type: FKKOPKOptional: No
Call by Reference: No ( called with pass by value option)
T_FKKCL - Clearing Items for Document in Contract Accounts Receivable and Payable
Data type: FKKCLOptional: Yes
Call by Reference: No ( called with pass by value option)
T_FKKOP_CL -
Data type: FKKOPOptional: Yes
Call by Reference: No ( called with pass by value option)
Copy and paste ABAP code example for FKK_FM_HEADER_COMPLETE 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_c_fkkko | TYPE FKKKO, " | |||
| lt_t_fkkop | TYPE STANDARD TABLE OF FKKOP, " | |||
| lt_t_fkkopk | TYPE STANDARD TABLE OF FKKOPK, " | |||
| lt_t_fkkcl | TYPE STANDARD TABLE OF FKKCL, " | |||
| lt_t_fkkop_cl | TYPE STANDARD TABLE OF FKKOP. " |
|   CALL FUNCTION 'FKK_FM_HEADER_COMPLETE' " |
| CHANGING | ||
| C_FKKKO | = lv_c_fkkko | |
| TABLES | ||
| T_FKKOP | = lt_t_fkkop | |
| T_FKKOPK | = lt_t_fkkopk | |
| T_FKKCL | = lt_t_fkkcl | |
| T_FKKOP_CL | = lt_t_fkkop_cl | |
| . " FKK_FM_HEADER_COMPLETE | ||
ABAP code using 7.40 inline data declarations to call FM FKK_FM_HEADER_COMPLETE
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.Search for further information about these or an SAP related objects