How To Fix MCEX143 - Structure &1 cannot be changed due to data in delta management ->Long txt

SAP Error Message - Details

• Message type: E = Error

• Message class: MCEX - Extraction Interface LIS/BW

• Message number: 143

• Message text: Structure &1 cannot be changed due to data in delta management ->Long txt

What causes this issue?

Changing the extract structure &V1& is not possible at this time, as
there is no data in central delta management in InfoSource &V2&. If you
changed the structure, the data could no longer be updated properly in
BW.

How to fix this error?

Before changing extract structure &V1&, you must collect this data from
BW.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MCEX143 - Structure &1 cannot be changed due to data in delta management ->Long txt ?

  The SAP error message MCEX143 indicates that a specific structure (denoted by &1) cannot be changed because there is existing data in delta management. This typically occurs in the context of SAP BW (Business Warehouse) or SAP BI (Business Intelligence) when you are trying to modify a data structure that is currently being used for delta processing.
  Cause:
  
  Delta Management: The structure you are trying to change is part of a delta process, which means that it is actively being used to track changes in the data. Delta management is used to efficiently load only the changes (inserts, updates, deletes) rather than the entire dataset.
  Existing Data: If there is already data in the delta queue or if the structure is linked to a data source that has been activated, you cannot make changes to it until the delta management is stopped or the data is cleared.
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Check Delta Management: Verify if delta management is active for the structure. You can do this by checking the settings in the DataSource or InfoProvider.
  
  
  Stop Delta Management: If you need to make changes to the structure, you may need to stop delta management. This can usually be done in the DataSource settings in the SAP BW system.
  
  
  Clear Delta Queue: If there is data in the delta queue, you may need to clear it. This can be done using transaction codes like RSA7 (for delta queue monitoring) or RSC3 (for delta queue management).
  
  
  Make Changes: Once delta management is stopped and the delta queue is cleared, you should be able to make the necessary changes to the structure.
  
  
  Reactivate Delta Management: After making the changes, you can reactivate delta management for the structure.
  
  
  Test: Finally, test the changes to ensure that everything is functioning as expected.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as RSA1 (Data Warehousing Workbench), RSA7 (Delta Queue), and RSC3 (Delta Queue Management).
  Documentation: Refer to SAP documentation for detailed steps on managing delta processes and structures in BW/BI.
  Backup: Always ensure you have a backup of your data and configurations before making changes to structures or delta management settings.
  
  If you continue to experience issues, consider reaching out to your SAP Basis or BW team for further assistance, as they may have additional tools or insights into your specific system configuration.