How To Fix /UI5/JSON_SCHEMA_CHK008 - Property value not matching pattern: Prop: &1 Pattern: &2

SAP Error Message - Details

• Message type: E = Error

• Message class: /UI5/JSON_SCHEMA_CHK -

• Message number: 008

• Message text: Property value not matching pattern: Prop: &1 Pattern: &2

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.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message /UI5/JSON_SCHEMA_CHK008 - Property value not matching pattern: Prop: &1 Pattern: &2 ?

  The SAP error message /UI5/JSON_SCHEMA_CHK008 Property value not matching pattern: Prop: &1 Pattern: &2 typically occurs in the context of SAPUI5 applications when there is a validation issue with the JSON data being processed. This error indicates that a property in the JSON object does not conform to the expected format defined by a JSON schema.
  Cause:
  
  
  Invalid Data Format: The value of a property in your JSON data does not match the expected pattern defined in the JSON schema. This could be due to:
  
  Incorrect data type (e.g., a string where a number is expected).
  A string that does not match a regular expression pattern defined in the schema (e.g., an email address format, a specific date format, etc.).
  Missing required properties or additional properties that are not allowed.
  
  
  
  Schema Definition Issues: The JSON schema itself may have been defined incorrectly, leading to mismatches with the actual data being provided.
  
  
  Solution:
  
  
  Check the JSON Data: Review the JSON data being sent to the UI5 application. Ensure that all properties conform to the expected formats and types as defined in the JSON schema.
  
  
  Validate Against the Schema: Use a JSON schema validator to check your JSON data against the schema. This can help identify which specific property is causing the issue and what the expected format is.
  
  
  Update the JSON Schema: If the JSON data is correct but the schema is too restrictive or incorrect, consider updating the schema to allow for the actual data being used.
  
  
  Debugging: Use debugging tools in your browser's developer console to inspect the JSON data being processed. This can help you pinpoint the exact property and value that is causing the error.
  
  
  Consult Documentation: Refer to the SAPUI5 documentation for guidance on JSON schema definitions and validation rules. This can provide insights into how to properly define your schema.
  
  
  Related Information:
  
  JSON Schema: A powerful tool for validating the structure of JSON data. It allows you to define the expected format, types, and constraints for your JSON objects.
  SAPUI5 Documentation: The official SAPUI5 documentation provides detailed information on data binding, JSON models, and schema validation.
  Common Patterns: Familiarize yourself with common patterns used in JSON schemas, such as regex patterns for strings, minimum and maximum values for numbers, and date formats.
  
  By following these steps, you should be able to identify and resolve the issue causing the /UI5/JSON_SCHEMA_CHK008 error in your SAPUI5 application.