SAP ISU_CUSTOMER_DATA_READ Function Module for

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ISU_CUSTOMER_DATA_READ is a standard isu customer data read 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 isu customer data read FM, simply by entering the name ISU_CUSTOMER_DATA_READ into the relevant SAP transaction such as SE37 or SE38.

Function Group: EA00
Program Name: SAPLEA00
Main Program: SAPLEA00
Appliation area: E
Release date: N/A
Mode(Normal, Remote etc): Normal Function Module
Update:

Function ISU_CUSTOMER_DATA_READ 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_CUSTOMER_DATA_READ'"
  EXPORTING
   X_VERTRAG =  "Contract Number
*  X_ACTUAL = 'X' "Flag: Read Data from Database

TABLES
   T_EKUN =  "

EXCEPTIONS
   NOT_FOUND = 1    SYSTEM_ERROR = 2    PATH_INVALID = 3    DATE_INVALID = 4 

.

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_SAPLEA00_001 IS-U: Enhancement for External Proration Dates
EXIT_SAPLEA00_002 Overriding Weighting Key for Measured Quantities
EXIT_SAPLEA00_007
EXIT_SAPLEA00_009 ISU: Enhancement for Day/Month-Related Determination of Time Portion

IMPORTING Parameters details for ISU_CUSTOMER_DATA_READ

X_VERTRAG - Contract Number

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

X_ACTUAL - Flag: Read Data from Database

Data type: REGEN-ACTUAL
Default: 'X'
Optional: Yes
Call by Reference: No ( called with pass by value option)

TABLES Parameters details for ISU_CUSTOMER_DATA_READ

T_EKUN -

Data type: ISU01_EKUN_TAB
Optional: No
Call by Reference: No ( called with pass by value option)

EXCEPTIONS details

NOT_FOUND - Contract Not Found

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

SYSTEM_ERROR - Other Error

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

PATH_INVALID -

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

DATE_INVALID -

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

Copy and paste ABAP code example for ISU_CUSTOMER_DATA_READ 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_CUSTOMER_DATA_READ

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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