How To Fix FDT_DEPLOYMENT123 - Incompatible element &1: Severity of existence check changed

SAP Error Message - Details

• Message type: E = Error

• Message class: FDT_DEPLOYMENT - Messages for deployment

• Message number: 123

• Message text: Incompatible element &1: Severity of existence check changed

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message FDT_DEPLOYMENT123 - Incompatible element &1: Severity of existence check changed ?

  The SAP error message FDT_DEPLOYMENT123 indicates that there is an issue with the deployment of a field or element in the context of SAP Fiori or SAP UI5 applications. Specifically, the message states that the "Severity of existence check changed" for an incompatible element. This typically occurs when there is a mismatch in the configuration or definition of a field or element that is being deployed.
  Cause:
  
  Changes in Field Definition: The error often arises when there have been changes to the field definitions in the backend system, such as changes in the data model or the way existence checks are defined for certain fields.
  Inconsistent Metadata: If the metadata for the field in the frontend does not match the backend definition, it can lead to this error.
  Version Mismatch: If there are different versions of the application or components being used, it can lead to compatibility issues.
  Transport Issues: If the transport of changes from one system to another (e.g., from development to production) has not been done correctly, it can lead to inconsistencies.
  
  Solution:
  
  Check Field Definitions: Review the field definitions in both the backend and frontend systems to ensure they are consistent. Make sure that the existence checks are defined correctly.
  Update Metadata: If there have been changes in the backend, ensure that the frontend metadata is updated accordingly. This may involve regenerating the metadata or redeploying the application.
  Clear Cache: Sometimes, clearing the cache of the application can resolve issues related to outdated metadata. This can be done in the SAP Gateway or the browser.
  Transport Consistency: Ensure that all relevant transports have been correctly imported into the target system. Check for any missing or failed transports.
  Check for Updates: Ensure that you are using the latest version of the SAP Fiori/UI5 libraries and components. Sometimes, updates can resolve compatibility issues.
  Consult Documentation: Refer to SAP documentation or notes related to the specific version of the software you are using for any known issues or patches.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any specific notes related to the error message FDT_DEPLOYMENT123. SAP frequently updates their knowledge base with solutions to common issues.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Debugging: If you have access to the development environment, consider debugging the deployment process to identify the exact point of failure.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.