How To Fix LTR2_DS_CHG_MWBGEN001 - MWB-generation for data model &1 was changed by &4

SAP Error Message - Details

• Message type: E = Error

• Message class: LTR2_DS_CHG_MWBGEN - Change log messages of data set Migration

• Message number: 001

• Message text: MWB-generation for data model &1 was changed by &4

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message LTR2_DS_CHG_MWBGEN001 - MWB-generation for data model &1 was changed by &4 ?

  The SAP error message LTR2_DS_CHG_MWBGEN001 indicates that there has been a change in the data model that is being used for the Multi-Provider (MWB) generation. Specifically, it suggests that the data model identified by &1 has been modified by user &4, which can lead to inconsistencies or conflicts when trying to generate the Multi-Provider.
  Cause:
  
  Concurrent Changes: The most common cause of this error is that multiple users are trying to modify the same data model at the same time. If one user makes a change while another is attempting to generate the Multi-Provider, this error can occur.
  Version Control: If the data model is under version control, changes made by another user may not be reflected in your current session, leading to conflicts.
  Locking Mechanism: SAP uses a locking mechanism to prevent simultaneous changes to the same object. If the object is locked by another user, you may encounter this error.
  
  Solution:
  
  Refresh the Session: If you suspect that the data model has been changed, refresh your session or re-open the transaction to ensure you have the latest version of the data model.
  Check for Locks: Use transaction codes like SM12 to check for locks on the data model. If another user has locked the object, you may need to wait until they release the lock.
  Communicate with Team Members: If you are working in a team environment, communicate with your colleagues to ensure that no one else is making changes to the data model while you are trying to generate the Multi-Provider.
  Review Change Logs: If available, review the change logs to understand what modifications were made and by whom. This can help you coordinate with the user who made the changes.
  Retry Generation: After ensuring that no other changes are being made, try to regenerate the Multi-Provider again.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as RSA1 (Data Warehousing Workbench) and RSRT (Query Monitor) for monitoring and managing data models and queries.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions for common problems.
  Documentation: Review SAP documentation on Multi-Providers and data modeling to ensure best practices are being followed.
  
  If the issue persists after trying the above solutions, consider reaching out to your SAP Basis or technical support team for further assistance.