How To Fix ESH_OM_OBJ_MODEL_REP401 - Request field &1 contains forbidden characters

SAP Error Message - Details

• Message type: E = Error

• Message class: ESH_OM_OBJ_MODEL_REP - Object Model Repository

• Message number: 401

• Message text: Request field &1 contains forbidden characters

What causes this issue?

Request field &v1& contains forbidden characters.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

# #&WHAT_TO_DO&
Only the following characters are allowed:
ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789.-_/\!"$%&()*:;<=>?@[]^/={}|~+`???
<(>,<)>

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message ESH_OM_OBJ_MODEL_REP401 - Request field &1 contains forbidden characters ?

  The SAP error message ESH_OM_OBJ_MODEL_REP401 indicates that a request field contains forbidden characters. This error typically arises in the context of the SAP Enterprise Search or the SAP HANA Search, where certain characters are not allowed in the input fields due to system constraints or security reasons.
  Cause:
  The error is triggered when a user inputs a value in a search or request field that includes characters that are not permitted. These forbidden characters can include special characters, symbols, or whitespace that the system does not recognize or cannot process.
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Identify Forbidden Characters: Check the documentation or guidelines for the specific SAP module you are using to identify which characters are considered forbidden. Common forbidden characters may include:
  
  Special characters (e.g., !, @, #, $, %, ^, &, *, (, ), +, =, {, }, [, ], ;, :, ").
  Leading or trailing spaces.
  Non-printable characters.
  
  
  
  Modify Input: Ensure that the input in the request field does not contain any of the forbidden characters. You can do this by:
  
  Removing or replacing special characters.
  Trimming any leading or trailing spaces.
  Validating the input before submission.
  
  
  
  Use Valid Input Formats: Follow the expected input formats for the fields. For example, if a field expects a numeric value, ensure that only numbers are entered.
  
  
  Testing: After making the necessary changes to the input, test the request again to see if the error persists.
  
  
  Consult Documentation: If you are unsure about which characters are allowed, refer to the SAP documentation or help resources specific to the module you are working with.
  
  
  Contact Support: If the issue continues after checking the input, consider reaching out to your SAP support team or consulting SAP Notes for any known issues or patches related to this error.
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any updates or patches that may address this issue.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  Input Validation: Implement input validation in your application to prevent users from entering forbidden characters in the first place.
  
  By following these steps, you should be able to resolve the ESH_OM_OBJ_MODEL_REP401 error and ensure that your input adheres to the system's requirements.