How To Fix LX157 - Data transfer object &1 already exists

SAP Error Message - Details

• Message type: E = Error

• Message class: LX - SAPDXfer: Central Tools - Initial Data Transfer

• Message number: 157

• Message text: Data transfer object &1 already exists

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message LX157 - Data transfer object &1 already exists ?

  The SAP error message LX157, which states "Data transfer object &1 already exists," typically occurs in the context of the Extended Warehouse Management (EWM) module or when dealing with data transfer objects (DTOs) in SAP. This error indicates that there is an attempt to create or register a data transfer object that already exists in the system.
  Cause:
  
  Duplicate Entry: The most common cause of this error is that the system is trying to create a DTO with an identifier that already exists in the database.
  Concurrency Issues: If multiple processes are trying to create the same DTO simultaneously, it can lead to this error.
  Incorrect Configuration: There may be issues with the configuration of the data transfer process that leads to the creation of duplicate entries.
  Data Consistency Issues: If there are inconsistencies in the data being processed, it may lead to attempts to create duplicate DTOs.
  
  Solution:
  
  
  Check Existing DTOs: Before creating a new DTO, check the existing entries in the system to ensure that the DTO you are trying to create does not already exist. You can do this by querying the relevant database tables or using transaction codes related to EWM.
  
  
  Modify the Identifier: If you need to create a new DTO, ensure that you are using a unique identifier that does not conflict with existing entries.
  
  
  Review Process Logic: If the error occurs during a specific process, review the logic of that process to ensure that it is not attempting to create the same DTO multiple times.
  
  
  Error Handling: Implement error handling in your code or process to manage situations where a DTO already exists. This could involve checking for existence before creation or handling exceptions gracefully.
  
  
  Consult Documentation: Refer to SAP documentation or notes related to the specific version of EWM you are using for any known issues or additional troubleshooting steps.
  
  
  SAP Support: If the issue persists and you cannot identify the cause, consider reaching out to SAP support for assistance. They may provide insights based on the specific configuration and version of your SAP system.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes in SAP EWM, such as /SCWM/PRDI for processing inbound deliveries or /SCWM/DO for managing data objects.
  SAP Notes: Check SAP Notes for any patches or updates that may address this issue.
  System Logs: Review system logs (transaction SLG1) for additional details that may help diagnose the problem.
  
  By following these steps, you should be able to resolve the LX157 error and prevent it from occurring in the future.