How To Fix /UI2/NAVIGATION002 - The field &1 must not contain the character "&2"

SAP Error Message - Details

• Message type: E = Error

• Message class: /UI2/NAVIGATION -

• Message number: 002

• Message text: The field &1 must not contain the character "&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.

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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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /UI2/NAVIGATION002 - The field &1 must not contain the character "&2" ?

  The SAP error message /UI2/NAVIGATION002 indicates that a specific field (denoted by &1) contains a character that is not allowed (denoted by &2). This error typically arises in the context of SAP Fiori applications or UI5 applications where certain input validations are enforced.
  Cause:
  
  
  Invalid Character: The field in question is likely defined to accept only certain characters, and the character you are trying to input is not permitted. This could be due to:
  
  Special characters that are not allowed.
  A specific format that the field must adhere to (e.g., numeric only, alphanumeric, etc.).
  
  
  
  Field Configuration: The field may have been configured in a way that restricts certain characters, either through validation rules or data type definitions.
  
  
  Data Model Constraints: The underlying data model or database table may have constraints that prevent certain characters from being stored.
  
  
  Solution:
  
  
  Check Input: Review the input you are trying to enter in the field. Ensure that it does not contain the character specified in the error message. Remove or replace any invalid characters.
  
  
  Field Documentation: Refer to the documentation or help text associated with the field to understand the allowed characters and formats.
  
  
  Configuration Review: If you have access to the backend configuration, check the field settings in the relevant data model or UI5 application. Look for any validation rules that may be causing this restriction.
  
  
  Consult with Developers: If you are unsure about the field's configuration or the reason for the restriction, consult with your SAP development team or the person responsible for the application. They may provide insights into why the character is not allowed and suggest appropriate changes.
  
  
  Testing: After making changes to the input or configuration, test the application again to ensure that the error is resolved.
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or updates related to this error message. Sometimes, SAP releases patches or notes that address specific validation issues.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  Fiori/UI5 Documentation: Review the official SAP Fiori/UI5 documentation for guidelines on input validation and field configurations.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.