How To Fix B1199 - Logical system & must not be deleted

SAP Error Message - Details

• Message type: E = Error

• Message class: B1 - ALE group messages

• Message number: 199

• Message text: Logical system & must not be deleted

What causes this issue?

The logical system &v1& is still used in distribution model &v2&
(client &v3&).

System Response

The deletion cannot be carried out.

How to fix this error?

Confirm that the logical system &v1& is really no longer used. Delete
it first from distribution model &v2& (client &v3&), then delete it
here.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message B1199 - Logical system & must not be deleted ?

  The SAP error message B1199, 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, quality assurance, and production systems.
  Cause:
  
  Dependencies: The logical system you are trying to delete is still being referenced in various configurations, such as in distribution models, RFC destinations, or other settings.
  Active Assignments: The logical system may be assigned to clients, transport routes, or other configurations that prevent its deletion.
  Data Consistency: SAP enforces data integrity and consistency, so if a logical system is in use, it cannot be deleted to avoid breaking links or references.
  
  Solution:
  To resolve this error, follow these steps:
  
  
  Check Dependencies:
  
  Use transaction code BD54 to check if the logical system is assigned to any distribution model.
  Use transaction code SM59 to check if there are any RFC destinations that reference the logical system.
  Check for any other configurations that might be using the logical system.
  
  
  
  Remove Assignments:
  
  If you find any dependencies, you will need to remove or change those assignments before you can delete the logical system.
  For example, if it is part of a distribution model, you can remove it from the model in transaction BD64.
  
  
  
  Delete Logical System:
  
  Once all dependencies are cleared, you can proceed to delete the logical system using transaction BDLS or SALE (for logical system configuration).
  
  
  
  Transport Routes:
  
  If the logical system is part of a transport route, you may need to adjust the transport routes accordingly.
  
  
  
  Check for Other References:
  
  Ensure that there are no other references to the logical system in other configurations or settings.
  
  
  
  Related Information:
  
  Logical System Configuration: Logical systems are defined in transaction SALE under the "Logical System" settings.
  Transport Management: Understanding how transport routes work in SAP can help in managing logical systems effectively.
  SAP Notes: Check SAP Notes for any specific issues or updates related to logical systems and error B1199.
  
  By following these steps, you should be able to identify the cause of the error and successfully delete the logical system if it is no longer needed.