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difference between business system and business service
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Answer Posted / uday kumar .s
Business Service
If you want to address an abstract business entity as the
sender or receiver of messages, choose this service type.
Using a business service, you can define the technical or
business subunits of the companies involved and then assign
them the relevant interfaces.
You usually use business services when configuring
cross-company processes. In this case, you only make your
interfaces known to the business partners involved and
either do not make any details about your own system
landscape available, or only specific details.
For example, you can define RosettaNet Partner Interface
Processes (PIPs) as business services. Using a business
service, you can define the technical or business subunits
of the companies involved and then assign them the relevant
interfaces.
Business Service is mostly used in B2B scenario
(cross-company), where you don't know the Business Systems
of your partner. In other words business service will be
used only for those partners that do not have a physical
landscape set up. Business Services do not have an entry in SLD.
Business System: Business systems are logical senders or
receivers that exchange messages by using the Integration
Server and that are entered in the System Landscape
Directory. The business systems in the System Landscape
Directory relate to a system landscape. The business systems
of business partners are therefore not entered in the System
Landscape Directory. To be able to address such business
partners logically, use communication components in the
Integration Directory. A business system is a way of
specifying a communication component in the Integration
Directory more precisely (business system component).
Business systems are logical senders or receivers that
exchange messages by using SAP XI and that are entered in
the System Landscape Directory. The business systems in the
System Landscape Directory relate to a system landscape. The
business systems of business partners are not entered in the
System Landscape Directory. To be able to address such
business partners logically, use services in the Integration
Directory. A business system is a way of specifying a
service in the Integration Directory more precisely
(business system service). It the business usage of the
system, here each client suppose 100 for development, 200
for testing this client represnt the BS.Did you ever wonder
how you can change the client of a Business System and it's
related communication channels in scenarios that make use of
SAP systems?
One might think that changing the client in the
communication channel (sender and/or receiver) is enough.
Unfortunately this is not the case. If you change only the
client in the communication channel you'll get the following
error: "Lookup of alternativeServiceIdentifier via CPA-cache
failed for channel XYZ"
Two options:
a) Either you create a new business system in the SLD and
you restart the configuration of all your scenarios, or
b) You change the client from the business system in the SLD
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