what is meant by sap R/3 ? why do u we call its 3 tier architecture........

[Former Member]

can some body pls tell me.

1. what do meant sap R/3

2.what is sap architecture?

3.what is sys landscape?

4.i have been trying to understand the sap sd tables processing ............i am not able to udnerstanding .........the process.........can anybody suggest me how to studty those tables.......

[Former Member]

Hi U had closed the thread without awarding points to the repliers.

On the left hand side of each reply, u will have radio buttons.opt one which u wish to award points

Mohan

[Former Member]

Hi,

The system landscape contains all systems that were installed. The customer can choose any landscape

according to the requirements.

If the customer is very big, one can implement four system landscapes. Mid size customers can go for two

system landscape.

Now we will see different system landscapes:

Four System Landscape:

In this landscape, we will find four systems,

1) development system

2) test system

3) pre-production system

4) production system

In development system, we find three clients

100

140

180

100 can be used as configuration client. 140 can be used for development. 180 can be used for testing

purpose in development system.

The Test system contains two clients

010

040

010 can be used for testing, where as 040can be used for training purposes.

The pre-production system is the one which behaves exactly as production system. It contains data similar to

production system. We can test with similar production data.

Production system contains one client where the end users will be working with real time data supporting day

to day business.

Mohan

[Former Member]

thanks, for reply............

sch.line cate the two movement type fields...

can pls give me scenarios....

thanks,

hari shankar.

[Former Member]

Hi,

The main tables in SAP SD are

VBAK sales header

VBAP sales item

VBEP schedule line item

LIKP delivery header

LIPS delivery item

VBRK billing header.

VBRP billing item

The flow goes from these tables to the respective tables.

Mohan

[Former Member]

Hi Hari,

Refer to the link below

http://en.wikipedia.org/wiki/SAP_R/3

Its a very good link and would solve most of your doubts on SAP R/3 architecture.

Reward points if it helps.

Regards

Karan

[Former Member]

Hi,

The R/3 architecture consists of 3 layers.

The three layers are:

Presentation layer

The PC-based GUI interface that is used by the end-user community.

Application layer

The SAP application servers that service requests for data and manage the interface to the presentation layer.

Database layer

The actual DBMS that communicates with the application servers to fulfill their requests for data.

A piece of "middleware" called BASIS links the application to the database and the operating system. BASIS is most commonly associated with the GUI interface to SAP (called SAPGUI), and the BASIS Administrator is an SAP professional who is responsible for configuring the SAP environment, including the GUI screens and the SAP application servers.

SAP end users log into their PCs using SAPGUI, and are connected to a specific application server. This application server has pre-established connections with the Oracle database, and it services all requests for data. As I mentioned earlier, the access language for Oracle data is SAP ABAP. ABAP generates Oracle SQL (Structured Query Language), which is then used to service the end user's request for data. The communication between the application servers and the database, and between the client and the application servers, is TCP/IP.

Mohan

Award points if it helps.

[Former Member]

Hi,

<a href="http://www.sapfans.com/sapfans/sapr3con.htm">r3 link</a>

<a href="http://www.cbbrowne.com/info/sap.html">r3 link 2</a>

<a href="http://www.ryerson.ca/~ppille/sap/Resources/EnterpriseResourcePlanningSAP2.htm">r3 link 3</a>

<a href="http://sap-img.com/general/what-is-sap--landscape.htm">Landscape</a>

<a href="http://sap-img.com/sap-sd/important-tables-for-sap-sd.htm">SD tables</a>

<a href="http://www.erpgenie.com/abap/tables_sd.htm">Sd tables flow</a>

Hope these links give you a good understanding. Please reward if helpful.

Thanks & Regards

Sadhu Kishore

[Former Member]

i am very thank ful to ur data ...................i had sap sd table data flow........but i am unable to understanad the flow...where its littlle bit confusion.............about the tables flow can u give me any suggestion how to start ..........

pls

thanks,

hari shankar...

[Former Member]

Hi Hari,

SD process starts off with sales orderdeliverybilling.

You can start off with the tables from sales order first and try to understand which field are related to master data and which field are relevant in creating delivery and billing further.

You can also refer to the link below and would get lots of info on SAP SD.

http://sap-img.com/sap-sd.htm

Reward points to the people whose replies you feel have helped you.

Regards

Karan