SAP GENERATE_EINVREF_NO Function Module for Generate E-invoice reference number

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GENERATE_EINVREF_NO is a standard generate einvref no SAP function module available within SAP R/3 or S/4 Hana systems, depending on your version and release level. It is used for Generate E-invoice reference number 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 generate einvref no FM, simply by entering the name GENERATE_EINVREF_NO into the relevant SAP transaction such as SE37 or SE38.

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

Function GENERATE_EINVREF_NO 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 'GENERATE_EINVREF_NO'"Generate E-invoice reference number
  EXPORTING
   I_VKONT =  "Contract Account Partner-Specific
   I_VKTYP =  "Contract Account Category
   I_GPART =  "Business Partner Number

 IMPORTING
   E_EINVREF =  "

EXCEPTIONS
   CA_NUM_NOT_GENERATED = 1    CA_DETAILS_NOT_FOUND = 2 

.

IMPORTING Parameters details for GENERATE_EINVREF_NO

I_VKONT - Contract Account Partner-Specific

Data type: FKKVK-VKONT
Optional: No
Call by Reference: Yes

I_VKTYP - Contract Account Category

Data type: FKKVK-VKTYP
Optional: No
Call by Reference: Yes

I_GPART - Business Partner Number

Data type: FKKVKP-GPART
Optional: No
Call by Reference: Yes

EXPORTING Parameters details for GENERATE_EINVREF_NO

E_EINVREF -

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

EXCEPTIONS details

CA_NUM_NOT_GENERATED - Contract account number not yet generated

Data type:
Optional: No
Call by Reference: Yes

CA_DETAILS_NOT_FOUND - CA number or CA category not available

Data type:
Optional: No
Call by Reference: Yes

Copy and paste ABAP code example for GENERATE_EINVREF_NO 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 GENERATE_EINVREF_NO

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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