How To Fix /UI5/JSON_SCHEMA_CHK000 - Property not in schema: &1&2

SAP Error Message - Details

• Message type: E = Error

• Message class: /UI5/JSON_SCHEMA_CHK -

• Message number: 000

• Message text: Property not in schema: &1&2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /UI5/JSON_SCHEMA_CHK000 - Property not in schema: &1&2 ?

  The SAP error message /UI5/JSON_SCHEMA_CHK000 Property not in schema: &1&2 typically occurs in the context of SAPUI5 applications when there is a mismatch between the JSON data being processed and the defined JSON schema. This error indicates that a property in the JSON data does not conform to the expected schema, which can lead to issues in rendering or processing the data correctly.
  Cause:
  
  
  Schema Mismatch: The JSON data being sent to the UI5 application contains properties that are not defined in the corresponding JSON schema. This can happen if:
  
  The JSON data structure has been modified without updating the schema.
  There are typos or incorrect property names in the JSON data.
  The schema itself is outdated or incorrect.
  
  
  
  Versioning Issues: If the application is using different versions of the schema and the data, it may lead to discrepancies.
  
  
  Dynamic Data: If the application is consuming dynamic data from a service that does not adhere to the expected schema, this error can occur.
  
  
  Solution:
  
  
  Validate JSON Data: Check the JSON data being sent to the UI5 application. Ensure that all properties match those defined in the schema. You can use JSON validators to help identify discrepancies.
  
  
  Update Schema: If the JSON data is correct and the schema is outdated, update the schema to include the new properties. Ensure that the schema accurately reflects the structure of the JSON data.
  
  
  Check for Typos: Review the property names in both the JSON data and the schema for any typographical errors.
  
  
  Debugging: Use debugging tools in your browser's developer console to inspect the JSON data being processed. This can help you identify which property is causing the issue.
  
  
  Consult Documentation: Refer to the SAPUI5 documentation for guidance on JSON schema definitions and best practices.
  
  
  Error Handling: Implement error handling in your application to gracefully manage cases where the data does not conform to the schema.
  
  
  Related Information:
  
  SAPUI5 Documentation: Review the official SAPUI5 documentation for information on JSON models and schema validation.
  JSON Schema: Familiarize yourself with JSON Schema standards to better understand how to define and validate your data structures.
  Community Forums: Engage with the SAP community forums or Stack Overflow for additional insights and solutions from other developers who may have encountered similar issues.
  
  By addressing the root cause of the error and ensuring that your JSON data and schema are aligned, you can resolve the /UI5/JSON_SCHEMA_CHK000 error effectively.