SAP READ_LFA1 Function Module for Direct read operation of vendor master information A segment

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READ_LFA1 is a standard read lfa1 SAP function module available within SAP R/3 or S/4 Hana systems, depending on your version and release level. It is used for Direct read operation of vendor master information A segment 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 read lfa1 FM, simply by entering the name READ_LFA1 into the relevant SAP transaction such as SE37 or SE38.

Function Group: F020
Program Name: SAPLF020
Main Program: SAPLF020
Appliation area:
Release date: N/A
Mode(Normal, Remote etc): Normal Function Module
Update:

Function READ_LFA1 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 'READ_LFA1'"Direct read operation of vendor master information A segment
  EXPORTING
   XLIFNR =  "Vendor number
*  XADR_FL = ' ' "

 IMPORTING
   XLFA1 =  "Vendor information at A segment level

EXCEPTIONS
   KEY_INCOMPLETE = 1    NOT_AUTHORIZED = 2    NOT_FOUND = 3 

.

IMPORTING Parameters details for READ_LFA1

XLIFNR - Vendor number

Data type: LFA1-LIFNR
Optional: No
Call by Reference: No ( called with pass by value option)

XADR_FL -

Data type: BOOLEAN
Default: SPACE
Optional: Yes
Call by Reference: Yes

EXPORTING Parameters details for READ_LFA1

XLFA1 - Vendor information at A segment level

Data type: LFA1
Optional: No
Call by Reference: No ( called with pass by value option)

EXCEPTIONS details

KEY_INCOMPLETE - Key is incomplete

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

NOT_AUTHORIZED - No authorization

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

NOT_FOUND - Not found

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

Copy and paste ABAP code example for READ_LFA1 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 READ_LFA1

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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