1. Workbench Request
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Contains cross-client objects. 
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These are usually repository objects that affect the entire system, not just one client. 
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Examples: - 
ABAP programs, Function Modules, Classes 
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Dictionary objects (Tables, Views, Data Elements, Domains) 
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Screens, Module Pool programs, etc. 
 
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Once transported, the change is available in all clients of the target system. 
👉 Think of Workbench = Development objects (cross-client).
2. Customizing Request
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Contains client-specific settings made in SPRO (IMG) customizing. 
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These are configuration settings that only affect the client in which they were made. 
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Examples: - 
Company Code settings 
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Plant settings 
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Number ranges 
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FI, MM, SD configuration changes in SPRO 
 
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Once transported, the customizing change is available only in the target client, not all clients. 
👉 Think of Customizing = Configuration settings (client-dependent).
3. TOC (Transport of Copies)
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A special type of transport request. 
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Used when you want to test changes in Quality (or another system) without releasing the main request. 
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Contents of the original request are copied into a TOC and transported. 
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The original request remains modifiable (still open). 
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Once everything is tested successfully, the original transport request can be released to move changes to Production. 
👉 Think of TOC = A “temporary copy” of your transport for testing.
 
																			