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Change Assignment of a System to a
Product/Product Version 
After an upgrade of manually created systems which are not updated automatically, you can assign another product or product version to a system, e.g. you change the system product assignment when you upgrade from R/3 4.6C to R/3 Enterprise 4.7.

Automatically determined systems can appear more than once as landscape components, if their components cannot automatically be assigned uniquely to one product, e.g. the automatic data determination cannot decide uniquely whether SAP APO or SAP BW is installed in a system. In this case, the system appears under both SAP APO and SAP BW in the Solution Manager System Landscape. Flag one product as leading. (4).
...
1. Choose Other Object.
2. Specify the system.
3. Choose the Installed Product Versions pushbutton.
4. Choose the new product data from the possible entries help.
or
If the new product/product version is not in the possible entries help, set the Free Product/Product Version Selection flag, and enter the product data.
or
If an automatically-determined system is assigned to several products, set the Leading Product Version flag for one product.
5. Save your entries and choose Continue.
The system is displayed in the new position among the landscape components at the left-hand side.
6. If the system instances have already been maintained for another product, you can copy the instances for the new system:
a. Select the main instance of the product in the overview tree, and go to the Instances tab.
b. Choose Copy Instances .
c. Choose an instance.
d. Save your selection.
