SAP ISU_SIMULATE_IVB_INTERN Function Module for INTERNAL: Simulated Billing of a Specified Period

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ISU_SIMULATE_IVB_INTERN is a standard isu simulate ivb intern SAP function module available within SAP R/3 or S/4 Hana systems, depending on your version and release level. It is used for INTERNAL: Simulated Billing of a Specified Period 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 isu simulate ivb intern FM, simply by entering the name ISU_SIMULATE_IVB_INTERN into the relevant SAP transaction such as SE37 or SE38.

Function Group: EA01
Program Name: SAPLEA01
Main Program: SAPLEA01
Appliation area: E
Release date: N/A
Mode(Normal, Remote etc): Normal Function Module
Update:

Function ISU_SIMULATE_IVB_INTERN 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 'ISU_SIMULATE_IVB_INTERN'"INTERNAL: Simulated Billing of a Specified Period
  EXPORTING
   X_ANLAGE =  "Installation
*  X_VERTRAG =  "Contract
*  X_BIPARAM =  "External Controls for Billing/Billing Simulation

 IMPORTING
   Y_IVB =  "
   Y_IZWST =  "

CHANGING
   XY_BI_MDATA_IF =  "Interface for billing master data of a contract

EXCEPTIONS
   GENERAL_FAULT = 1 

.

Customer Function user exits

Below is a list of CUSTOMER FUNCTION exit user exits that are available within this program and maybe relevant for this FM.
EXIT_SAPLEA01_001 IS-U: Billing Document Enhancement
EXIT_SAPLEA01_002 IS-U: Enhancement for Checking the Billing Document
EXIT_SAPLEA01_003
EXIT_SAPLEA01_004
EXIT_SAPLEA01_005
EXIT_SAPLEA01_006
EXIT_SAPLEA01_007
EXIT_SAPLEA01_008
EXIT_SAPLEA01_009

IMPORTING Parameters details for ISU_SIMULATE_IVB_INTERN

X_ANLAGE - Installation

Data type: EANL-ANLAGE
Optional: No
Call by Reference: Yes

X_VERTRAG - Contract

Data type: EVER-VERTRAG
Optional: Yes
Call by Reference: Yes

X_BIPARAM - External Controls for Billing/Billing Simulation

Data type: BIPARAM
Optional: Yes
Call by Reference: Yes

EXPORTING Parameters details for ISU_SIMULATE_IVB_INTERN

Y_IVB -

Data type: ISU2A_BILLING_DATA-IVB
Optional: No
Call by Reference: Yes

Y_IZWST -

Data type: ISU2A_BILLING_DATA-IZWST
Optional: No
Call by Reference: Yes

CHANGING Parameters details for ISU_SIMULATE_IVB_INTERN

XY_BI_MDATA_IF - Interface for billing master data of a contract

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

EXCEPTIONS details

GENERAL_FAULT -

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

Copy and paste ABAP code example for ISU_SIMULATE_IVB_INTERN 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 ISU_SIMULATE_IVB_INTERN

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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