Difference between SE01, SE09 and SE10 Transactions in SAP

Both SE09 and SE10 were used in earlier releases of SAP for different purposes.

SE09 – This was used for development of transports

SE10 – This was used for customizing the transports request. When you run SE10 in SAP ERP, you will get the same screen as in T-Code SE09 of Transport Organizer.

In the latest version of SAP NetWeaver, both the Transactions are same.

SE01 –This combines the features of both SE09 and SE10. Apart from that, there are many other features included in it like displaying specific transport request.