What is shadow import in SAP BC-UPG - Upgrade - General?

SAP Term: shadow import

• Component: BC-UPG

• Component Name: Upgrade - General

• Description: An import of upgrade transport requests, including any Support Packages and add-ons, into the shadow repository tables, and into the new tables in the target release. You can make the import during production operation of the system, since the imported tables are not used by the source release.

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• Key Concepts: 
  Shadow import is a process in SAP that allows users to import objects into the system without actually changing the existing objects. This process is used to test the impact of changes before they are implemented in the system. It is also used to compare different versions of objects and to analyze the differences between them. 
  
  How to use it: 
  To use shadow import, users must first create a shadow system. This is done by creating a copy of the existing system and then making changes to the copy. Once the changes have been made, users can then import the objects from the shadow system into the existing system. This will allow users to test out the changes without actually changing any of the existing objects. 
  
  Tips & Tricks: 
  When using shadow import, it is important to remember that any changes made in the shadow system will not be reflected in the existing system until they are imported. Therefore, it is important to make sure that all changes are tested thoroughly before they are imported into the existing system. Additionally, it is important to remember that any changes made in the existing system will not be reflected in the shadow system until they are imported. 
  
  Related Information: 
  Shadow import is part of SAP's BC-UPG Upgrade - General component. This component provides users with tools and processes for upgrading their SAP systems. Other components within this component include Upgrade Preparation, Upgrade Planning, and Upgrade Execution.