How To Fix FDT_CHANGE_INFO151 - Mappings were changed in the step sequence

SAP Error Message - Details

• Message type: E = Error

• Message class: FDT_CHANGE_INFO - FDT: Changes info in object for different versions

• Message number: 151

• Message text: Mappings were changed in the step sequence

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message FDT_CHANGE_INFO151 - Mappings were changed in the step sequence ?

  The SAP error message FDT_CHANGE_INFO151 indicates that there have been changes made to the mappings in the step sequence of a Data Transformation (DT) process. This error typically arises in the context of SAP Data Services or SAP Process Integration (PI) when there are inconsistencies between the expected mappings and the actual mappings defined in the transformation steps.
  Cause:
  
  
  Mapping Changes: The mappings in the transformation steps have been altered after the initial configuration or execution plan was created. This could happen due to:
  
  Manual changes made by a developer or administrator.
  Changes in the source or target data structures that necessitate updates to the mappings.
  Versioning issues where different versions of the mappings are being referenced.
  
  
  
  Execution Context: The error may also occur if the execution context of the transformation does not match the current state of the mappings, leading to discrepancies.
  
  
  Solution:
  To resolve the FDT_CHANGE_INFO151 error, you can follow these steps:
  
  
  Review Changes: Check the recent changes made to the mappings in the Data Transformation step sequence. Identify what has been modified and ensure that these changes are intentional and correct.
  
  
  Revalidate Mappings: After making changes, revalidate the mappings to ensure that they align with the expected input and output structures. This may involve:
  
  Opening the Data Transformation in the SAP Data Services Designer or relevant tool.
  Checking the mapping logic and ensuring that all fields are correctly mapped.
  
  
  
  Update Execution Plan: If the mappings have changed, you may need to update the execution plan or regenerate it to reflect the new mappings. This can often be done through the relevant SAP interface.
  
  
  Test the Transformation: After making the necessary adjustments, run a test of the transformation to ensure that it executes without errors. Monitor the logs for any additional issues.
  
  
  Documentation: Document any changes made to the mappings for future reference. This can help in troubleshooting similar issues in the future.
  
  
  Related Information:
  
  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.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Version Control: If your organization uses version control for mappings, ensure that you are working with the correct version and that all team members are aware of recent changes.
  
  By following these steps, you should be able to resolve the FDT_CHANGE_INFO151 error and ensure that your data transformations run smoothly.