Determining the Transaction Code 
You can determine the transaction code for the transaction you want to have recorded in the SAP system.
From the main menu of the SAP system, choose the application area that the data to be migrated is associated with.
Follow the paths until you reach the appropriate transaction.
Choose . Under the Repository data, you can find the transaction code of the corresponding transaction.
Example
If you want to know what the transaction code for the Create Customer transaction is:
Choose . The corresponding dialog box appears.
Choose . The corresponding dialog box appears.
Choose . In the Repository data, you can see that this is Transaction FD01.