How To Fix UJW_EXCEPTION004 - LKWS_ table already exists

SAP Error Message - Details

• Message type: E = Error

• Message class: UJW_EXCEPTION - BPC: Work Status Message Class

• Message number: 004

• Message text: LKWS_ table 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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message UJW_EXCEPTION004 - LKWS_ table already exists ?

  The SAP error message UJW_EXCEPTION004 LKWS_<Appset Prefix><Appl Prefix> table already exists typically indicates that there is an attempt to create a database table that already exists in the system. This error is often encountered in the context of SAP BW (Business Warehouse) or SAP HANA environments when working with data models, InfoProviders, or similar objects.
  Cause:
  
  Table Already Exists: The primary cause of this error is that the system is trying to create a table that has already been created in the database. This can happen during the activation of a data model or when running a data load process.
  Duplicate Execution: If a process is executed multiple times without proper checks, it may lead to attempts to recreate existing tables.
  Incorrect Configuration: Misconfiguration in the data model or incorrect settings in the data load process can lead to this error.
  
  Solution:
  
  
  Check Existing Tables: Verify if the table LKWS_<Appset Prefix><Appl Prefix> already exists in the database. You can do this by querying the database directly or using transaction codes like SE11 (Data Dictionary) or SE16 (Data Browser) in SAP.
  
  
  Drop the Existing Table: If the table is not needed or is a remnant of a previous process, you can drop the existing table. However, be cautious with this approach as it may lead to data loss. Ensure that you have backups or that the data is no longer needed.
  
  
  Adjust Data Load Process: Modify the data load process or the activation process to check for the existence of the table before attempting to create it. This can often be done by adjusting the settings in the data model or the data source.
  
  
  Re-activate the Data Model: If the error occurs during the activation of a data model, try to deactivate and then reactivate the model. This can sometimes resolve inconsistencies.
  
  
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error. There may be patches or updates that resolve known issues related to this error.
  
  
  Contact SAP Support: If the issue persists and you cannot find a resolution, consider reaching out to SAP Support for assistance. Provide them with the error message and any relevant details about the context in which it occurs.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes like SE11, SE16, and SE80 for managing database objects and data models.
  SAP BW Documentation: Review SAP BW documentation for best practices on data modeling and loading processes.
  Database Management: Understanding how to manage database objects in your specific SAP environment (e.g., HANA, Oracle) can be beneficial.
  
  By following these steps, you should be able to diagnose and resolve the UJW_EXCEPTION004 error effectively.