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_________________________________________________________________________________Business Scenario: Suppose in an Organization for some Maintenance activity they need a Grinder Machine . Itmight be the case that the Machine is already there and they can reserve the machine for some day(whyreservation of the machine like in a big org they can have multiple maintenance activities and some of themmay need the same machine) but what if the Machine is not there. That time the Org takes the decision to get itfrom Vendors for which the Purchasing dept should raise a Purchase requisition ,then Purchase order and at lastthe vendor supplies the goods.

In SAP R/3 the issue can be replicated by Creating a Reservation(Tx-MB21) which says that there is arequirement for some material and then they go to Tx-ME51N and Create the Purchase Requisition and then PurOrder . This all needs front end interaction with the SAP GUI.

Here the Org can take the Decision that when ever there is any requirement for a Material the PurchaseRequisition should generate automatically and also the Purchase Order by some background job.In such case we can use the Standard BAPI: 'BAPI_PR_CREATE' to generate the Purchase Requisition from theReservation ._________________________________________________________________________________

Step1. Go to Tx- MB21 to create a reservation of material.

Step2. Provide the details and click on Create Button.

1.BAPI- How to Use Standard BAPI

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Step3. Provide the cost center and Material number, quantity, plant and storage location. It signifies that this plant needsmaterial for the Maintenance activity.

Step4. Save it.

Step5. Teh Reservation Number is generated.

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Step6. The Reservations are stored in the Table: RESB.

Step7. Then the User Run the Tx: ME51N to cretae a purchase requisition for the required material quantity .

Step8. Pur Req- Doc type is NB. Provides the material number and quantity and creates a purchase requisition.

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Step9. The below Pur Requisition is generated which can be displayed in ME53N.

Step10. Lets Automate the process by Using BAPI fm. The Bapi: BAPI_PR_CRETAE can be used to create the bapi in background.

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Step11. Create a message class to show our message.

_________________________________________________________________________________Step12. Below report creates the Purchase requisition for the selected Reservation.

REPORT zres_pr_create MESSAGE-ID ZPR_CRT.

TYPE-POOLS : slis.DATA : lt_resb TYPE TABLE OF resb.

START-OF-SELECTION. SELECT * FROM resb INTO TABLE lt_resb WHERE bdter = sy-datum. " Get all reservation " created on the current date SORT lt_resb BY rsnum rspos.

END-OF-SELECTION.

CALL FUNCTION 'REUSE_ALV_GRID_DISPLAY' EXPORTING i_callback_program = sy-cprog i_callback_pf_status_set = 'FM_STATUS'

i_callback_user_command = 'CRT_PR' i_structure_name = 'RESB' i_grid_title = 'Showing Todays Material Reservation' TABLES t_outtab = lt_resb.

*&---------------------------------------------------------------------**& Form FM_status*&---------------------------------------------------------------------** text*----------------------------------------------------------------------*FORM fm_status USING rt_extab TYPE slis_t_extab. SET PF-STATUS 'STATUS_PR' EXCLUDING rt_extab. " Create Pf status for appl toolbar ButtonENDFORM. "fm_status

*&---------------------------------------------------------------------**& Form crt_pr*&---------------------------------------------------------------------** text*----------------------------------------------------------------------** -->R_UCOMM text* -->RS_SELFIELD text*----------------------------------------------------------------------*FORM crt_pr USING r_ucomm LIKE sy-ucomm rs_selfield TYPE slis_selfield. DATA : it_resb TYPE TABLE OF resb, ls_resb TYPE resb, pos TYPE rspos . DATA : ls_hdr TYPE bapimereqheader, ls_hdr_x TYPE bapimereqheaderx, pr_num TYPE bapimereqheader-preq_no, t_ret TYPE TABLE OF bapiret2, s_ret TYPE bapiret2, t_pritm TYPE TABLE OF bapimereqitemimp, s_pritm TYPE bapimereqitemimp, t_pritmx TYPE TABLE OF bapimereqitemx, s_pritmx TYPE bapimereqitemx.

IF rs_selfield-sel_tab_field = '1-RSNUM'. " CHeck if the User Single-click on the Reservation No.

LOOP AT lt_resb INTO ls_resb WHERE rsnum = rs_selfield-value . " Read the Reservation Value APPEND ls_resb TO it_resb. CLEAR ls_resb. ENDLOOP.

** The Reservation Records are Ready in the Internal Table it_resb**

** FILL Header **** ls_hdr-pr_type = 'NB'. " Pur Requisition Document type ls_hdr_x-pr_type = 'X'.****fill item*** LOOP AT it_resb INTO ls_resb . pos = 10 + ls_resb-rspos - 1. s_pritm-preq_item = pos. s_pritm-pur_group = '011'. " pur group

s_pritm-preq_name = 'SHIPPING'. " requisitioner name s_pritm-material = ls_resb-matnr. " material Number s_pritm-plant = ls_resb-werks. " plant number s_pritm-store_loc = ls_resb-lgort. " storage loc s_pritm-quantity = ls_resb-bdmng. " quantity s_pritm-unit = ls_resb-meins. " unit s_pritm-deliv_date = sy-datum + 10 . " delivery date of goods s_pritm-reserv_no = ls_resb-rsnum. " reservation number APPEND s_pritm TO t_pritm. CLEAR : ls_resb, s_pritm.*****fill item text *** s_pritmx-preq_item = pos. s_pritmx-preq_itemx = 'X'. s_pritmx-pur_group = 'X'. s_pritmx-preq_name = 'X'. s_pritmx-material = 'X'. s_pritmx-plant = 'X'. s_pritmx-store_loc = 'X'. s_pritmx-quantity = 'X'. s_pritmx-unit = 'X'. s_pritmx-deliv_date = 'X'. APPEND s_pritmx TO t_pritmx. CLEAR s_pritmx. ENDLOOP.

CASE r_ucomm.

WHEN 'CRT_PR'. " Fcode when the user clicks on the Appl Tool Bar Button "Create Pur Req" . CALL FUNCTION 'BAPI_PR_CREATE' " Call this bapi and pass the values EXPORTING prheader = ls_hdr prheaderx = ls_hdr_x IMPORTING number = pr_num TABLES return = t_ret " return message is store in this table pritem = t_pritm pritemx = t_pritmx. IF sy-subrc = 0. READ TABLE t_ret INTO s_ret WITH KEY type = 'S'. IF sy-subrc = 0. MESSAGE I000 WITH s_ret-message_v1 rs_selfield-value. COMMIT WORK. ENDIF. ELSE. ROLLBACK WORK. ENDIF. ENDCASE. ENDIF.ENDFORM. "CRT_PR

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Step13. Create the PF status with below application tool bar Button.

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Step14. Run the report and we can see all the Reservations created for the current date.

Step15. Select any one and click on the Button Cretae Pur Requisition.

Step16. The BAPI is executed and the Pur Req. is generated which can be viewed in Tx- ME53N.

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Posted 19th June 2014 by S Prasad

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