Defining/Setting Up a Logical System

You perform this cross-client procedure only in one SAP System and transport this table to all other SAP Systems connected to the CUA. Alternatively, you can define the logical systems for each SAP System by performing the following procedure in every SAP System for the logical systems there.

Procedure

Log on to the central system with the administration user (in this example, ADM, client 070).

In the Implementation Guide (IMG, transaction SALE), choose Sending and Receiving Systems → Logical Systems → Define Logical System (transaction BD54). You can alternatively maintain the table view V_TBDLS using transaction SM30.

Choose Edit → New Entries.

In the LogSystem column, create a new logical name in capital letters for every CUA system (that is, for the central and all child systems including those from other SAP Systems).

1. Note
   

   So that you can easily identify the systems by their names, use the following naming convention for the logical system names:<System ID>CLNT<Client>.

   If your central system is ADM, client 070, the name would be:ADMCLNT070.

Enter a useful description for the logical system.

If you want to change this short text for a logical system, proceed as follows:

1. Select the corresponding line.
   Choose Edit → Change field contents.
   Enter the desired new short text.
2. Choose Replace.

Save your entries, which are included in a transport request.

Create the logical system name for the central system in all child systems. You have the following options to do this:

Your transport administration imports the transport request that was created with point 6, which contains the names of all logical systems, into all other SAP Systems in the CUA.

Perform this procedure in all child systems of the CUA. Create the logical system name of the central system and the respective child system there.

Create a New Client in SAP?

Before creating the new client we need to have logical system for new client.

What is logical system in SAP?

Logical system enables the system reorganize the target system as an RFC destination.
Logical system required for communication between systems within the landscape. You need a logical system when you create a new client in SAP.

T-code to create logical system in SAP is BD54.
or
In IMG  go-to T-code "SALE-->Basic setting-->Logical System-->Define logical system".

How to create logical system in SAP?

1) Run transaction code BD54. Click on the pencil(change-->Display) icon. Then, click on New Entries.


2) Use the following naming convention for the logical system names. <System ID>CLNT<Client>. Save your entries,which included in a transport request. Create the logical system name for the central system in all child system.


For ex. if your new client no is 800 and SID(system ID) is ECC then logical system will be ECCCLNT800.

Steps to Create a New Client in SAP

To make a new client from SAP menu -> Administration ->Administration-> Client Administration or SAP T-code SCC4-> Client Maintenance. 

To create a new client, enter the below details after clicking on New Entries.

• Client number and name
• City
• Currency, Roles

 Enter your client-specific data and set permission for the clients as per your requirement and click on Save.

Now, if you go to the Display Client list, Transaction SCC4 > Display > New client will be added.

T000 – Table stores all the list of created clients.

Make login/no_automatic_user_sapstar=0 (Enabling SAP* user in newly created client)

Step-by-step procedure:

• Login to the SAP system using client 000 or 001

• Hit the transaction code ‘RZ10′

• Click Utilities and click import profiles

• Click back (F3)

• Place the cursor at profile and click f4

• Double click on Default profile

• Select the Extended maintenance and click change

• Click Parameter (Create F5)

• Place the cursor at parameter name and click F4

• Click a small triangle shape which is available on top of the box

• Type *login* and hit enter

• Double click on ‘login/no_automatic_user_sapstar’ parameter

• Type the parameter value as ’0′

• Click ‘Copy’ Tab and click back (F3)

• Click ‘Copy’ Tab again to transfer The changed profile

• Click Back (F3)

• Click Save, Click back and Click Yes to activate the profile

• Log out from the SAP system

• Stop the SAP System

• Start the SAP System

• Now try to login as sap* and Password as ‘pass’

• Now you should be able to login to newly created client using virtual user temporarily before doing client copy