Complete Technical System Information Manually 
With the technical system editor, you can manually create, change, and delete information about technical systems, in the Landscape Management Database (LMDB) of SAP Solution Manager.
Note
Avoid manual creation and editing of system information, which can become inconsistent or obsolete.
Register technical systems automatically with data suppliers, as described under Register Technical Systems Automatically by Data Suppliers.
Data from the System Landscape Directory (SLD) will no longer be updated by automatic synchronization once you changed manually in the LMDB, because the rank of the LMDB is higher than the SLD rank.
Manually created data also must be updated manually.
Prerequisites
To maintain technical system information, the following requirements must be fulfilled:
You have performed the basic configuration of the LMDB. For more information, see Set Up the Landscape Management Infrastructure.
Synchronization between SLD and LMDB is active. For more information, see Register Technical Systems Automatically by Data Suppliers.
To display a technical system, you need the SAP_SYSTEM_REPOSITORY_DIS user role.
To create, change, or delete a technical system, you need the SAP_SYSTEM_REPOSITORY_ALL user role.
Activities
The following information about technical systems must be created manually in the LMDB:
Installed product instances of systems that do not supply product information.
For more information, Create and Edit Technical System Information.
Installation number and system number of systems that do not supply these numbers.
For more information, see Other Settings and Functions in the Technical System Editor.
The Diagnostics-Relevant indicator for product instances
For more information, see Other Settings and Functions in the Technical System Editor.
Custom attributes
For more information, see Other Settings and Functions in the Technical System Editor.