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Special LUW Considerations Locate the document in its SAP Library structure

In the update task queue, the system identifies all function modules belonging to the same transaction (SAP LUW) by assigning them a common update key. At the next COMMIT WORK, the update task reads the queue and processes all requests with the predefined update key.

If your program calls an update-task function module, the request to execute the module (or the subroutine calling it) is provided with the update key of the current LUW and placed in the queue.

The following sections explain what happens to LUWs when update function modules are included in other modules (transactions or dialog modules) that are called by other programs.

Transactions That Call Update Task Functions

Dialog Modules That Call Update Task Functions


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