Locking Mechanism and update workprocess

[former_member751591]

Hello there i am beginner learning SAP . Can somebody explain how the below mechanism work step by step in ABAP AS Mulitiple instance architecture. How will update work process update database objects in below case.

[former_member751591]

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[drayton_al]

Lock mechanism places a lock on the records if a user is modifying the same . so that other users for other Apps servers cannot use that same record. After the user is done and cofirms the data, the Update work process update the database records.