Saving and Locking Concept for the Workbench 
Saving and Locking Concept for the Workbench
Saving Concept
Differences Between Transaction Data and Master Data
The system writes transaction data directly to BW.
Master data is saved as follows:
Saving Concept for Master Data
Changes you make to the customizing settings are written to the database only after you choose Save.
Saving changes made during all operations
When you perform multiple operations in sequence (for example, you created document type 1, created method 4, and changed method 3), the system "collects" these changes in a buffer and saves them all at once when you choose Save.
Reversing changes in the last operation
If you performed multiple operations since the last time you saved, you can reverse the changes made in the last operation by choosing Cancel.
However, after performing two or more operations, it is not possible to only reverse the changes made during the first operation.
Reversing changes made during all operations
If you performed multiple operations since the last time you saved, you can reverse all of those operations by choosing Cancel and then exiting the workbench without saving.
Locking Concept
All customizing objects you work on while performing a series of operations are locked for other users until you save the changes of those operations.
If several people work on the same customizing objects at the same time, they should save their changes in regular intervals.