ME21N user exit or BADI

Question

Hi SAP Gurus,
I need help from you people, regarding ME21N.
In 4.7 Ver. after executing tcode ME21N, I had enter all required details for PO. for this we will give external order no. in Account assignment catageory tab.
but my client requirement is, while enterning the Order no. in Account assignment tab Warning message has to be display based on item no., Account assignment catageory combination.
For this I couldn't find any USER EXIST or BADI.
Kindly help me to resolve this issue.
Thanks and regards,
sreenivas

Answer 1

hi,
check these exits nbadi's for me21n.
Transaction Code - ME21N                    Create Purchase Order
Enhancement/ Business Add-in            Description
Enhancement
MEQUERY1                                Enhancement to Document Overview ME21N/ME51N
MEVME001                                WE default quantity calc. and over/ underdelivery tolerance
MM06E001                                User exits for EDI inbound and outbound purchasing documents
MM06E003                                Number range and document number
MM06E004                                Control import data screens in purchase order
MM06E005                                Customer fields in purchasing document
MM06E007                                Change document for requisitions upon conversion into PO
MM06E008                                Monitoring of contr. target value in case of release orders
MM06E009                                Relevant texts for "Texts exist" indicator
MM06E010                                Field selection for vendor address
MMAL0001                                ALE source list distribution: Outbound processing
MMAL0002                                ALE source list distribution: Inbound processing
MMAL0003                                ALE purcasing info record distribution: Outbound processing
MMAL0004                                ALE purchasing info record distribution: Inbound processing
MMDA0001                                Default delivery addresses
MMFAB001                                User exit for generation of release order
MRFLB001                                Control Items for Contract Release Order
MELAB001                                Gen. forecast delivery schedules: Transfer schedule implem.
AMPL0001                                User subscreen for additional data on AMPL
LMEDR001                                Enhancements to print program
LMELA002                                Adopt batch no. from shipping notification when posting a GR
LMELA010                                Inbound shipping notification: Transfer item data from IDOC
LMEQR001                                User exit for source determination
LMEXF001                                Conditions in Purchasing Documents Without Invoice Receipt
LWSUS001                                Customer-Specific Source Determination in Retail
M06B0001                                Role determination for purchase requisition release
M06B0002                                Changes to comm. structure for purchase requisition release
MEFLD004                                Determine earliest delivery date f. check w. GR (only PO)
MEETA001                                Define schedule line type (backlog, immed. req., preview)
ME590001                                Grouping of requsitions for PO split in ME59
M06E0005                                Role determination for release of purchasing documents
M06E0004                                Changes to communication structure for release purch. doc.
M06B0005                                Changes to comm. structure for overall release of requisn.
M06B0004                                Number range and document number
M06B0003                                Number range and document number
Business Add-in
ME_BAPI_PR_CREATE_01                    BAdI: Enjoy BAPIs for Purchase Requisitions
ME_BAPI_PR_CHANGE_02                    BAdI: Enjoy BAPIs for Purchase Requisitions (Method Change)
ME_BAPI_PR_CHANGE_01                    BAdI: Enjoy BAPIs for Purchase Requisitions (Method Change)
ME_ACTV_CANCEL_PO                       BAdI for Activating the Cancel Function at Header Level
SMOD_MRFLB001                           Control Items for Contract Release Order
MM_EDI_ORDERS_OUT                       Enhancements for IDoc Output of Purchase Order: Internal
MM_EDI_DESADV_IN                        Supplementation of Delivery Interface from Purchase Order
MM_EDI_DELFOR_OUT                       Enhancements for IDoc Output of SA Releases: Internal
ME_TAX_FROM_ADDRESS                     Tax jurisdiction code taken from address
ME_REQ_POSTED                           Purchase Requisition Posted
ME_BAPI_PR_CREATE_02                    BAdI: Enjoy BAPIs for Purchase Requisitions (Method Create)
ME_COMMTMNT_PO_RELEV                    Check for Commitment-Relevance of Purchase Orders
ME_PROCESS_REQ                          Enhancements for Processing Enjoy PReqs: Internal
ME_PROCESS_REQ_CUST                     Enhancements for Processing Enjoy PReqs: Customer
ME_CHANGE_CHARACTER                     Customer-Specific Characteristics for Product Allocation
ME_TRIGGER_ATP                          Triggers New ATP for Changes in EKKO, EKPO, EKPV
ME_COMMTMNT_PO_REL_C                    Check for Commitment-Relevance of Purchase Orders
EXTENSION_US_TAXES                      Extended Tax Calculation with Additional Data
ME_COMMTMNT_REQ_RELE                    Check of Commitment Relevance of Purchase Requisitions
ME_COMMTMNT_REQ_RE_C                    Check of Commitment Relevance of Purchase Requisitions
ME_RELEASE_CREATE                       BAdI: Release Creation for Sched. Agreemnts with Rel. Docs
ME_REQ_OI_EXT                           Commitment Update in the Case of External Requisitions
MEGUI_LAYOUT                            BAdI for Enjoy Purchasing GUI
ME_BSART_DET                            Change document type for automatically generated POs
ME_CCP_ACTIVE_CHECK                     BAdI to check whether CCP process is active
ME_CCP_BESWK_AUTH_CH                    BAdI for authorization checks for procuring plant
ME_CCP_DEL_DURATION                     Calc. of Delivery Duration in CCP Process (Not in Standard)
ME_CHECK_ALL_ITEMS                      Run Through Items Again in the Event of Changes in EKKO
ME_CHECK_SOURCES                        Additional Checks in Source Determination/Checking
ME_CIN_LEINRF2R                         BADI for CIN India - Delivery charges
ME_CIN_LEINRF2V                         BADI for LEINRF03 excise_invoice_details
ME_CIN_MM06EFKO                         Copy PO data for use by Country version India
ME_CIP_ALLOW_CHANGE                     Configuration in Purchasing: Changeability Control
ME_CIP_REF_CHAR                         Facilitates Reference Characteristics in Purchasing
ME_COMMITMENT_STO_CH                    BadI for checking if commitments for STOs are active
ME_DEFINE_CALCTYPE                      Control of Pricing Type: Additional Fields
ME_GUI_PO_CUST                          Customer's Own Screens in Enjoy Purchase Order
ME_HOLD_PO                              Hold Enjoy Purchase Orders: Activation/Deactivation
ME_PO_SC_SRV                            BAdI: Service Tab Page for Subcontracting
ME_PROCESS_COMP                         Processing of Component Default Data at Time of GR: Customer
ME_PROCESS_PO                           Enhancements for Processing Enjoy Purchase Order: Intern.
ME_PROCESS_PO_CUST                      Enhancements for Processing Enjoy Purchase Order: Customer
ME_PURCHDOC_POSTED                      Purchasing Document Posted
reward if hlpful.