How To Fix B1198 - Logical system & must not be deleted

SAP Error Message - Details

• Message type: E = Error

• Message class: B1 - ALE group messages

• Message number: 198

• Message text: Logical system & must not be deleted

What causes this issue?

The logical system &v1& is assigned to client &v2&.

System Response

The deletion cannot be carried out.

How to fix this error?

Confirm that system &v1& is really no longer used. Delete it first from
the client assignment &v2&, then delete it here.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message B1198 - Logical system & must not be deleted ?

  The SAP error message B1198, which states "Logical system & must not be deleted," typically occurs when there is an attempt to delete a logical system that is still in use or has dependencies in the SAP system. Logical systems are used in SAP to identify different systems in a landscape, such as development, testing, and production environments.
  Cause:
  
  Active Dependencies: The logical system you are trying to delete is still being referenced in various configurations, such as in the ALE (Application Link Enabling) settings, distribution model, or other related configurations.
  Data Consistency: The system prevents deletion to maintain data integrity and consistency across the landscape.
  Transport Requests: There may be transport requests or other objects that are still linked to the logical system.
  
  Solution:
  To resolve the B1198 error, follow these steps:
  
  
  Check Dependencies:
  
  Use transaction code BD54 to check the distribution model and see if the logical system is still being used.
  Check transaction SALE for ALE settings and ensure that the logical system is not part of any active configuration.
  
  
  
  Remove References:
  
  If the logical system is part of any distribution model, you will need to remove it from there.
  Check for any transport requests that may reference the logical system and handle them accordingly.
  
  
  
  Delete Logical System:
  
  Once all dependencies are cleared, you can attempt to delete the logical system again using transaction BDLS or SCC4 (for client settings).
  
  
  
  Consult Documentation:
  
  Review SAP documentation or notes related to logical systems and their management for any additional steps or considerations.
  
  
  
  System Administrator:
  
  If you are unsure about the dependencies or how to proceed, consult with your SAP Basis administrator or a technical consultant who can assist in safely removing the logical system.
  
  
  
  Related Information:
  
  Logical System Configuration: Logical systems are defined in transaction BD54 and are crucial for ALE and IDoc processing.
  Transport Management: Understanding how transport requests work in SAP can help in identifying any links to the logical system.
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or updates regarding this error message.
  
  By following these steps, you should be able to resolve the B1198 error and successfully delete the logical system if it is no longer needed.