How To Fix RSO_CTC253 - Delta for &1 (source system &2) must be reinitialized in &3

SAP Error Message - Details

• Message type: E = Error

• Message class: RSO_CTC - Message class for CTC related messages

• Message number: 253

• Message text: Delta for &1 (source system &2) must be reinitialized in &3

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSO_CTC253 - Delta for &1 (source system &2) must be reinitialized in &3 ?

  The SAP error message RSO_CTC253 indicates that a delta process for a specific data source in a source system needs to be reinitialized. This typically occurs in the context of SAP BW (Business Warehouse) when there are issues with the delta mechanism for data extraction from a source system.
  Cause:
  
  
  Delta Initialization Required: The delta mechanism for the specified data source has not been initialized properly or has become inconsistent. This can happen due to various reasons, such as:
  
  Changes in the source system that affect the delta extraction.
  Issues during the last delta load that caused it to fail.
  The data source was changed or modified in a way that requires a reinitialization.
  
  
  
  Data Source Configuration Changes: If there have been changes to the data source configuration in the source system, it may require a reinitialization to ensure that the delta mechanism can function correctly.
  
  
  Technical Issues: There may be technical issues in the source system or in the BW system that prevent the delta from being processed correctly.
  
  
  Solution:
  To resolve the RSO_CTC253 error, you need to reinitialize the delta for the specified data source. Here are the steps to do this:
  
  
  Check the Data Source: Verify the configuration of the data source in the source system. Ensure that it is set up correctly and that there are no issues.
  
  
  Reinitialize Delta:
  
  Go to the SAP BW system.
  Navigate to the Data Warehousing Workbench (transaction RSA1).
  Find the data source that is causing the issue.
  Right-click on the data source and select "Manage" or "Delta Initialization".
  Choose the option to "Initialize Delta" or "Reinitialize Delta".
  Follow the prompts to complete the initialization process.
  
  
  
  Perform a Full Load: If the delta initialization does not resolve the issue, you may need to perform a full load of the data from the source system to ensure that all data is correctly loaded into the BW system.
  
  
  Monitor the Process: After reinitializing the delta, monitor the process to ensure that it completes successfully and that the delta loads are functioning as expected.
  
  
  Related Information:
  
  Transaction Codes: Common transaction codes related to data sources and delta initialization include RSA1 (Data Warehousing Workbench), RSO2 (Maintain DataSource), and RSO3 (Display DataSource).
  Documentation: Refer to SAP Help documentation for detailed steps on managing data sources and delta initialization.
  SAP Notes: Check for any relevant SAP Notes that may provide additional guidance or fixes related to this error message.
  
  If the problem persists after following these steps, it may be necessary to consult with your SAP Basis or BW team for further investigation and support.