TYPES OF WORKPROCESS

There are different types of work process on which SAP Instance depends to run as described below

 Dialog Work process(D) :- Used by frontend users or frontend process every dispatcher requires at least two dialog work processes

 Backgorund Work process (B) : Used for long running Jobs .At least two for each R/3 system (more than one allowed for each dispatcher)

 Enqueue Work process (E) :Used for Locking /Unlocking purposes

only one enqueue work process is needed for each system

 Update work process (V1) : Used for critical updates into Database

at least one for each R/3 System (more than one allowed for each dispatcher)

 Update workprocess (V2): Used for normal updates after critical updates

 Gateway work process (G) : allows communication between R/3, R/2 and external

application systems.

 Spool work process (S) : Used for Printing from SAP at least one process

 Message Service (M): Used for messaging purpose. The message server (MS or M) communicates between the distributed dispatchers within the R/3 System and is therefore the prerequisite for scalability using several parallel-processing Application servers.

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