How To Fix CNV_21527020 - Logical system &1 not defined in TBDLS

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_21527 - Logical System Rename

• Message number: 020

• Message text: Logical system &1 not defined in TBDLS

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_21527020 - Logical system &1 not defined in TBDLS ?

  The SAP error message CNV_21527020 indicates that a logical system is not defined in the table TBDLS. This table is used in SAP to manage logical system definitions, which are essential for various processes, including data transfer and system integration.
  Cause:
  The error typically occurs due to one of the following reasons:
  
  The logical system you are trying to use has not been created or defined in the SAP system.
  There may be a typo or mismatch in the logical system name being referenced.
  The logical system might have been deleted or not properly configured in the system.
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Check Logical System Configuration:
  
  Go to transaction code SE03 (Transport Organizer Tools) or BD54 (Maintain Logical Systems).
  Verify if the logical system mentioned in the error message is listed in the table TBDLS.
  If it is not present, you will need to create it.
  
  
  
  Create a Logical System:
  
  If the logical system is missing, you can create it by:
  
  Going to transaction BD54.
  Click on "New Entries" and enter the logical system name and description.
  Save your changes.
  
  
  
  
  
  Check for Typos:
  
  Ensure that the logical system name used in your configuration or data transfer process matches exactly with what is defined in TBDLS. Pay attention to case sensitivity and any special characters.
  
  
  
  Transport Requests:
  
  If you are working in a development environment and the logical system is defined in a transport request, ensure that the transport has been moved to the target system.
  
  
  
  System Configuration:
  
  If you are working with multiple systems (e.g., Development, Quality, Production), ensure that the logical system is defined in all relevant systems.
  
  
  
  Related Information:
  
  TBDLS Table: This table contains the definitions of logical systems. You can view it using transaction SE11 (Data Dictionary).
  Logical System Naming Conventions: Ensure that the naming conventions for logical systems are followed as per your organization's standards.
  Integration with Other Systems: If you are integrating with other SAP or non-SAP systems, ensure that the logical systems are correctly defined and configured in both systems.
  
  By following these steps, you should be able to resolve the error CNV_21527020 and ensure that the logical system is properly defined in your SAP environment.