In SAP installation and upgrade tools, you sometimes have to generate a key to upgrade a product.
SAP Solution Manager must know the following details of the related technical system (AS ABAP or AS Java):
SAP system ID
Message server
Instance number
Proceed as follows:
Start the LMDB with transaction LMDB.
Choose Installation Key Generation.
Enter the required data and choose Generate Key.
The system displays the key. Save it locally.
You can now use the generated key in the installation or upgrade tools.