How To Fix B2002 - Be careful when changing the logical system (see long text)

B2002 - Overview

• Message type: E = Error

• Message class: B2 - ALE Basis tools messages

• Message number: 002

• Message text: Be careful when changing the logical system (see long text)

The logical system is used for the ALE (Application Link Enabling)
component. The logical system is the unique name for the client
throughout the company in this database.
When maintaining the logical system, be aware of the following:
The logical system must be unique throughout the company. It must not be
used by another system in the ALE group of systems.
In the productive system, the logical system may not be changed once an
inital value has been entered.
When a non-initial logical system is changed, it may occur that
documents from its own system cannot be found. When the logical system
of the document reference does not match its own system, the system
assumes that the document is in another system.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message B2002 - Be careful when changing the logical system (see long text) ?

  The SAP error message B2002 typically indicates a warning related to changing the logical system in your SAP environment. This message is often encountered when you are attempting to modify the logical system configuration, which can have significant implications for data consistency and system integration.
  
  Cause:
  The error message B2002 is triggered when:
  
  You are trying to change the logical system name in the SAP system.
  The system detects that changing the logical system can lead to inconsistencies in data, especially if the logical system is already in use for various configurations, data transfers, or integrations with other systems.
  
  
  Solution:
  To address this error, consider the following steps:
  
  
  Review Dependencies: Before changing the logical system, review all dependencies and configurations that rely on the current logical system. This includes:
  
  RFC connections
  ALE (Application Link Enabling) settings
  IDocs
  Data transfer processes
  
  
  
  Backup Data: Ensure that you have a complete backup of your system and relevant data before making any changes. This will help