SAP TZB21_READ_CLERK Function Module for Checks Processor During Transfer or Reads All Entries in TZB21T

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TZB21_READ_CLERK is a standard tzb21 read clerk SAP function module available within SAP R/3 or S/4 Hana systems, depending on your version and release level. It is used for Checks Processor During Transfer or Reads All Entries in TZB21T 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 tzb21 read clerk FM, simply by entering the name TZB21_READ_CLERK into the relevant SAP transaction such as SE37 or SE38.

Function Group: FVP8
Program Name: SAPLFVP8
Main Program: SAPLFVP8
Appliation area: F
Release date: N/A
Mode(Normal, Remote etc): Normal Function Module
Update:

Function TZB21_READ_CLERK 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 'TZB21_READ_CLERK'"Checks Processor During Transfer or Reads All Entries in TZB21T
  EXPORTING
*  I_BEARB =  "

 IMPORTING
   E_TZB21T =  "

TABLES
*  E_TAB_TZB21T =  "Name of Clerk (Processing Group)

EXCEPTIONS
   CLERK_NOT_DEFINED = 1 

.

IMPORTING Parameters details for TZB21_READ_CLERK

I_BEARB -

Data type: TZB21-BEARB
Optional: Yes
Call by Reference: No ( called with pass by value option)

EXPORTING Parameters details for TZB21_READ_CLERK

E_TZB21T -

Data type: TZB21T
Optional: No
Call by Reference: No ( called with pass by value option)

TABLES Parameters details for TZB21_READ_CLERK

E_TAB_TZB21T - Name of Clerk (Processing Group)

Data type: TZB21T
Optional: Yes
Call by Reference: Yes

EXCEPTIONS details

CLERK_NOT_DEFINED -

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

Copy and paste ABAP code example for TZB21_READ_CLERK 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 TZB21_READ_CLERK

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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