How To Fix /UI5/APP_API143 - Descriptor of app &1 not replicated into LRep, duplicate Id detected

SAP Error Message - Details

• Message type: E = Error

• Message class: /UI5/APP_API -

• Message number: 143

• Message text: Descriptor of app &1 not replicated into LRep, duplicate Id detected

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /UI5/APP_API143 - Descriptor of app &1 not replicated into LRep, duplicate Id detected ?

  The SAP error message /UI5/APP_API143 Descriptor of app &1 not replicated into LRep, duplicate Id detected typically occurs in the context of SAP Fiori applications and the SAP UI5 framework. This error indicates that there is a problem with the application descriptor (manifest.json) of a UI5 application, specifically that there is a duplicate ID detected in the application repository (LRep).
  Cause:
  
  
  Duplicate Application ID: The most common cause of this error is that there is another application with the same ID already registered in the SAP system. Each UI5 application must have a unique ID, and if two applications share the same ID, the system will not allow the replication of the new application descriptor.
  
  
  Incorrect Configuration: There may be issues in the configuration of the application, such as incorrect entries in the manifest.json file or other related configuration files.
  
  
  Transport Issues: If the application was transported from one system to another, there might be inconsistencies in the transport that could lead to duplicate entries.
  
  
  Solution:
  
  
  Check for Duplicate IDs: 
  
  Go to the SAP Fiori Launchpad or the relevant application management area and check if there is already an application with the same ID. If you find a duplicate, you will need to either rename your new application or remove the existing one if it is no longer needed.
  
  
  
  Modify Application ID: 
  
  If you have control over the application, change the application ID in the manifest.json file to a unique value. Ensure that the new ID follows the naming conventions and is not already in use.
  
  
  
  Clear Cache: 
  
  Sometimes, clearing the cache of the SAP system or the browser can help resolve issues related to application replication.
  
  
  
  Check Transport Requests: 
  
  If the application was transported, ensure that the transport requests are correctly configured and that there are no conflicts in the transport logs.
  
  
  
  Review Manifest.json: 
  
  Ensure that the manifest.json file is correctly configured and does not contain any errors. Validate the JSON structure and check for any missing or incorrect entries.
  
  
  
  Use SAP Tools: 
  
  Utilize SAP tools like the SAP Web IDE or Business Application Studio to manage your applications, as they often provide better error handling and validation features.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional troubleshooting steps.
  Documentation: Refer to the official SAP documentation for UI5 application development, which may provide insights into best practices for application ID management and configuration.
  Community Forums: Engage with the SAP Community or forums where other developers may have encountered similar issues and can offer solutions or workarounds.
  
  By following these steps, you should be able to resolve the error and successfully replicate your application descriptor into the LRep.