How To Fix /UI5/APP_API053 - Column &1 is unknown

SAP Error Message - Details

• Message type: E = Error

• Message class: /UI5/APP_API -

• Message number: 053

• Message text: Column &1 is unknown

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /UI5/APP_API053 - Column &1 is unknown ?

  The SAP error message /UI5/APP_API053 Column &1 is unknown typically occurs in the context of SAP Fiori applications or when working with SAPUI5. This error indicates that the application is trying to access a column in a data model that does not exist or is not recognized.
  Cause:
  
  Column Name Mismatch: The column name specified in the application does not match any of the columns defined in the underlying data model or OData service.
  Data Model Changes: If there have been recent changes to the data model (e.g., adding or removing fields), the application may not be updated to reflect these changes.
  OData Service Issues: The OData service might not be correctly configured or might not expose the expected fields.
  Typographical Errors: There could be a typo in the column name in the code or configuration.
  
  Solution:
  
  Check Column Names: Verify that the column name referenced in the application matches exactly with the column names defined in the OData service or data model. Pay attention to case sensitivity and spelling.
  Update the Application: If the data model has changed, ensure that the application is updated to reflect these changes. This may involve updating the metadata or the binding in the UI5 application.
  Review OData Service: Check the OData service to ensure that it is correctly exposing the expected fields. You can use tools like the SAP Gateway Client or Postman to test the OData service and view its metadata.
  Clear Cache: Sometimes, caching issues can cause discrepancies. Clear the browser cache or the SAP Gateway cache to ensure that the latest version of the service is being used.
  Debugging: Use debugging tools in the browser (like Chrome Developer Tools) to inspect the network requests and responses. This can help identify if the correct data is being fetched and if the expected columns are present.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues related to the specific version of SAPUI5 or the OData service you are using.
  Documentation: Refer to the official SAPUI5 documentation for guidelines on data binding and OData service integration.
  Community Forums: Engage with the SAP Community or forums like SAP Community Network (SCN) for insights from other developers who may have encountered similar issues.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.