Change and Transport System (CTS)

What is CTS and what do you know about it?- 

• The Change and Transport System (CTS) is a tool that helps you to organize development projects in the ABAP Workbench and in  Customizing, and then transport the changes between the SAP Systems and clients in your system landscape. This documentation provides you with an overview of how to manage changes with the CTS and essential information on setting up your system and client landscape and deciding on a transport strategy. Read and follow this documentation when planning your development project

This article answers following queries in SAP ?

• What is Change and Transport System (CTS) in SAP ?
• What is Transport Management System(TMS) in SAP ?
• What is Change and Transport Organiser (CTO) in SAP ?
• What are the transport tools  in SAP ?
• What is the transport control program and what is its significance in SAP ?
• What is the functionality of R3trans program in SAP?

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Change and Transport System (CTS) is the tool provided by SAP for the creation, documentation and distribution of changes within a system landscape.

CTS comprises of 

Change and Transport Organiser (CTO) : This provides several functions to facilitate software development 

 Transport Management System (TMS) : This is used to setup transport routes in the landscape. This provides functions to perform organize, monitor and perform transports within the landscape 

Transport Tools (R3trans and TP) : These are the tools that are used by SAP at operating system level to communicate with SAP, database and the files generated during the export process.

The transport control program (TP) is a utility for provided by SAP for managing transports and to handle release upgrades. This utility is inturn called by other programs like CTS, TMS and Upgrade control program (R3up)

R3trans is a transport program provided by SAP to handle transports between different SAP systems and for the release upgrades. R3trans is usually not called directly and it is called mostly by Transport control program(TP) and Upgrade control program(R3up)

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