How To Fix LT252 - Confirmation f. external systems must be defined in separate confirmation

SAP Error Message - Details

• Message type: E = Error

• Message class: LT - LE-WM: View or Table Maintenance Error Messages

• Message number: 252

• Message text: Confirmation f. external systems must be defined in separate confirmation

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message LT252 - Confirmation f. external systems must be defined in separate confirmation ?

  The SAP error message LT252 ("Confirmation for external systems must be defined in separate confirmation") typically occurs in the context of warehouse management and logistics execution processes. This error indicates that there is an issue with how confirmations are being processed for external systems, such as when integrating with third-party logistics (3PL) or other external applications.
  Cause:
  The error is usually caused by one of the following reasons:
  
  Configuration Issue: The system is not configured to handle confirmations from external systems properly. This can happen if the settings for handling external confirmations are not defined correctly in the system.
  Mixed Confirmations: The system is trying to process confirmations that are meant for both internal and external systems in a single confirmation, which is not allowed.
  Inconsistent Data: There may be inconsistencies in the data being sent from the external system, leading to the inability to process the confirmation as expected.
  
  Solution:
  To resolve the LT252 error, you can take the following steps:
  
  
  Check Configuration:
  
  Go to the configuration settings for warehouse management and logistics execution in SAP.
  Ensure that the settings for external confirmations are correctly defined. This may involve checking the configuration for the relevant movement types and confirmation types.
  
  
  
  Separate Confirmations:
  
  Ensure that confirmations from external systems are processed separately from internal confirmations. This may involve creating different confirmation types or movement types for external confirmations.
  
  
  
  Review Integration Settings:
  
  If you are using middleware or integration tools (like SAP PI/PO or other ETL tools), check the mapping and transformation rules to ensure that the data being sent to SAP is correctly formatted and adheres to the expected structure.
  
  
  
  Test with Sample Data:
  
  Conduct tests with sample data to ensure that the system can handle confirmations from external systems without errors. This can help identify if the issue is with specific data or a broader configuration problem.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or notes related to warehouse management and external system integrations for any specific guidelines or updates that may address this issue.
  
  
  
  Contact SAP Support:
  
  If the issue persists after checking the above points, consider reaching out to SAP support for further assistance. They may provide insights based on the specific version of SAP you are using and any known issues.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as LT03 (Create Transfer Order), LT12 (Confirm Transfer Order), and others related to warehouse management.
  SAP Notes: Search for SAP Notes related to LT252 or external confirmations in the SAP Support Portal for any patches or updates that may resolve the issue.
  User Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to diagnose and resolve the LT252 error effectively.