How To Fix FDT_DEPLOYMENT126 - Incompatible structure &1: Component &2 is missing or has different type

SAP Error Message - Details

• Message type: E = Error

• Message class: FDT_DEPLOYMENT - Messages for deployment

• Message number: 126

• Message text: Incompatible structure &1: Component &2 is missing or has different type

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message FDT_DEPLOYMENT126 - Incompatible structure &1: Component &2 is missing or has different type ?

  The SAP error message FDT_DEPLOYMENT126 indicates that there is an issue with the deployment of a data structure in the SAP system. Specifically, it points out that a component of the structure is either missing or has a different type than expected. This error typically occurs in the context of using the SAP Fiori Data Transformation (FDT) framework or when working with data models in SAP.
  Cause:
  
  
  Incompatible Data Structure: The data structure being deployed does not match the expected structure defined in the system. This could be due to:
  
  A missing component in the structure.
  A component that exists but has a different data type than what is expected.
  Changes made to the data structure after it was initially defined or deployed.
  
  
  
  Version Mismatch: If there are multiple versions of the data structure or if the structure has been modified in a way that is not compatible with the existing deployment.
  
  
  Transport Issues: If the data structure was transported from one system to another (e.g., from development to production) and the target system does not have the same definitions or components.
  
  
  Solution:
  
  
  Check the Data Structure: Review the data structure definition in the SAP system. Ensure that all components are present and that their data types match the expected definitions.
  
  
  Update the Structure: If you find discrepancies, update the data structure to ensure that it matches the expected format. This may involve adding missing components or changing the data types of existing components.
  
  
  Re-deploy the Structure: After making the necessary changes, attempt to re-deploy the data structure. This can often resolve the issue if the structure is now compatible.
  
  
  Check Transport Requests: If the issue arose after a transport, verify that all necessary objects and dependencies were included in the transport request. Ensure that the target system is in sync with the source system.
  
  
  Consult Documentation: Review any relevant SAP documentation or notes related to the FDT framework and the specific data structure you are working with. There may be known issues or additional steps required for certain configurations.
  
  
  Debugging: If the issue persists, consider using debugging tools to trace the deployment process and identify where the incompatibility arises.
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to the FDT framework or the specific error message.
  FDT Documentation: Review the official SAP documentation for the FDT framework to understand the expected structure and deployment processes.
  Community Forums: Engage with SAP community forums or support channels where other users may have encountered similar issues and can provide insights or solutions.
  
  By following these steps, you should be able to identify the cause of the FDT_DEPLOYMENT126 error and implement a solution to resolve it.