T-code

A T-code is a transaction code used whenever executing particular task. Each function in SAP ERP has an SAP transaction code associated with it.

Use
A transaction code is used to access functions or running programs (including executing ABAP code) in the SAP application more rapidly. By entering a t-code instead of using the menu, navigation and execution are combined into a single step, much like shortcuts in the Windows OS. SAP transaction codes can be entered into the Transaction code field to navigate the user directly to the screen or program task bypassing the SAP menu.

Example
Users can create a new session and start a new transaction in one step by entering /o followed by the transaction code e.g. /oFB60.

Example Transaction codes

MM01  creation of Material Master

XK01(BP)  Creation of Vendor Master

XD01(BP)   creation of Customer Master

FB60	Accounts Payable Invoice Entry

FB65	Accounts Payable Credit Note Entry

FK10N	Display Accounts Payable Balances

The transaction for MM module starts with M. IH09 - Display Material MM01 - Create Material MM02 - Change Material MM03 - Display Material MM50 - List Extendable Materials MMBE - Stock Overview MMI1 - Create Operating Supplies MMN1 - Create Non-Stock Material MMS1 - Create Service MMU1 - Create Non-Valuated Material ME51N - Create Purchase Requisition ME52N - Change Purchase Requisition ME53N - Display Purchase Requisition ME5A - Purchase Requisitions: List Display ME5J - Purchase Requisitions for Project ME5K - Requisitions by Account Assignment MELB - Purch. Transactions by Tracking No. ME56 - Assign Source to Purch. Requisition ME57 - Assign and Process Requisitions ME58 - Ordering: Assigned Requisitions ME59 - Automatic Generation of POs ME54 - Release Purchase Requisition ME55 - Collective Release of Purchase Reqs. ME5F - Release Reminder: Purch. Requisition MB21 - Create Reservation MB22 - Change Reservation MB23 - Display Reservation MB24 - Reservations by Material MB25 - Reservations by Account Assignment MB1C - Other Goods Receipts MB90 - Output Processing for Mat. Documents MB21 - Create Reservation MB22 - Change Reservation MB23 - Display Reservation MB24 - Reservations by Material MB25 - Reservations by Account Assignment MBRL - Return Delivery per Mat. Document MB1C - Other Goods Receipts MB90 - Output Processing for Mat. Documents MB1B - Transfer Posting MIBC - ABC Analysis for Cycle Counting MI01 - Create Physical Inventory Document MI02 - Change Physical Inventory Document MI03 - Display Physical Inventory Document MI31 - Batch Input: Create Phys. Inv. Doc. MI32 - Batch Input: Block Material MI33 - Batch Input: Freeze Book Inv.Balance MICN - Btch Inpt:Ph.Inv.Docs.for Cycle Ctng MIK1 - Batch Input: Ph.Inv.Doc.Vendor Cons. MIQ1 - Batch Input: PhInvDoc. Project Stock MI01 - Create Physical Inventory Document MI02 - Change Physical Inventory Document MI03 - Display Physical Inventory Document MI31 - Batch Input: Create Phys. Inv. Doc. MI32 - Batch Input: Block Material MI33 - Batch Input: Freeze Book Inv.Balance MICN - Btch Inpt:Ph.Inv.Docs.for Cycle Ctng MIK1 - Batch Input: Ph.Inv.Doc.Vendor Cons. MIQ1 - Batch Input: PhInvDoc. Project Stock MI01 - Create Physical Inventory Document MI02 - Change Physical Inventory Document MI03 - Display Physical Inventory Document MI31 - Batch Input: Create Phys. Inv. Doc. MI32 - Batch Input: Block Material MI33 - Batch Input: Freeze Book Inv.Balance MICN - Btch Inpt:Ph.Inv.Docs.for Cycle Ctng MIK1 - Batch Input: Ph.Inv.Doc.Vendor Cons. MIQ1 - Batch Input: PhInvDoc. Project Stock MI21 - Print physical inventory document MI04 - Enter Inventory Count with Document MI05 - Change Inventory Count MI06 - Display Inventory Count MI09 - Enter Inventory Count w/o Document MI34 - Batch Input: Enter Count MI35 - Batch Input: Post Zero Stock Balance MI38 - Batch Input: Count and Differences MI39 - Batch Input: Document and Count MI40 - Batch Input: Doc., Count and Diff. MI08 - Create List of Differences with Doc. MI10 - Create List of Differences w/o Doc. MI20 - Print List of Differences MI11 - Physical Inventory Document Recount MI07 - Process List of Differences MI37 - Batch Input: Post Differences