Important T-codes in SAP MM

Material Master:
MM01	Create Material master
MM02	Change Material master
MM03	Display material master
MM50	Extend Material views
MMPV	Close periods for Materials
MM06	Flag for deletion- Material
MM17	Mass maintenance- Material
MM71	Archive/ Delete Material
MM72	Display archive
Vendor Master
MK01	Create Vendor (Purchasing)
MK02	Change venor (Purchasing)
MK05	Vendor block (Purchasing)
XK01	Create Vendor (Central)
XK02	Change venor (Central)
XK05	Vendor block (Central)
XK06	Flag for deletion (Central)
XK99	Mass maintenance (vendor record)
Info Record
ME11	Create Info record
ME12	Change Info record
ME15	Flag for deletion
MEMEASSIN	PI record Mass maintenance
Source List
ME01	Maintain source list
ME0M	Maintain source list- By material
ME05	Generate source list
ME06	Analyze source list
ME07	Recognize source list
Quota Arrangement
MEQ1	Maintain quota arrangement
MEQM	Maintain quota arrangement- By material
MEQ6	Analyze quota arrangement
MEQ7	Delete quota arrnagement
MEQ8	Monitor quota arrangement
Batch Data
CT04	Define batch characteristics
CL02	Define batch classes
MSC1N	Create batch
MSC2N	Change and classify batch
Message Conditions
MN01	Create message condition(RFQ)
MN02	Change message condition(RFQ)
MN04	Create message condition(PO)
MN05	Change message condition(PO)
MN06	Display message (PO)
MN07	Create message condition(Scheduling agreement)
MN08	Change message condition(Scheduling agreement)
MN10	Create message condition (delivery schedule)
MN11	Change Message condition(delivery schedule)
Reorder point planning
MD14	Convert planned order to purchase requisition
MD15	collective conversion to purchase requisition
MD12	Delete individual planned Order
MD20	Create planning file entries
MDAB	Planning file entries in the background
MD01	Total Planning (Online)
MDBT	Total Planning (Background))
MD03	Single item,single level planning
MD08	MRP Recognisation list
Requisition
ME51N	Create requisition
ME52N	Change requisition
ME53N	Display requisition
MEMASSRQ	Mass maintenance requisition
ME56	Assign source of supply to the requisition
ME57	Assign and process
Request for Quotation (RFQ)
ME41	Create RFQ
ME42	Change RFQ
ME43	Display RFQ
ME9A	Print RFQ
ME47	Maintain quotation
ME49	Price comparison
Scheduling Agreement
ME31L	Create Scheduling agreement
ME32L	Change Scheduling agreement
ME9L	Print Scheduling agreement
ME38	Maintain delivery schedule
ME9E	Print delivery schedule
Purchase Order(PO)
ME58	Create PO via assignment
ME59N	Create PO automatically from purchase requisition
ME21N	Create PO
ME22N	Change PO
ME9F	Print PO
MEMASSPO	PO Mass maintenance
Goods Receipt:
MIGO	Good Receipt
	Goods Issue
	Stock Transfers
Invoice Matching
MIRO	Enter Invoice and Maintenance
MRBR	Release blocked invoices
MR8M	Cancel Invoice
Stock Movements
MB1A	Goods Issues
MBST	Cancel/ Reverse goods movement
MB1B	Transfer Postings (Stock and status)
Consignment Stocks
MRKO	Consignment settlement
Physical Inventory
MI01	Create count document
MI02	Change count document
MI21	Print physical inventory document
MI04	Enter count
MI05	Change count
MI11	Recount
MI07	Post differences
MI20	Differences list