How To Fix RE658 - Field & does not lie within customer namespace

SAP Error Message - Details

• Message type: E = Error

• Message class: RE - Earmarked funds

• Message number: 658

• Message text: Field & does not lie within customer namespace

What causes this issue?

You have defined a field in a CI-Include that does not lie within the
customer namespace (beginning with "YY" or with "ZZ").

System Response

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

How to fix this error?

Check your CI-Includes.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message RE658 - Field & does not lie within customer namespace ?

  The SAP error message RE658, which states "Field & does not lie within customer namespace," typically occurs when you are trying to access or modify a field that is not defined in the customer namespace. In SAP, the customer namespace is a designated area where custom developments and modifications can be made without conflicting with standard SAP objects.
  Cause:
  
  Field Definition: The field you are trying to access or modify is part of the SAP standard objects and is not defined in the customer namespace.
  Custom Development: If you are working on a custom development (like a report, enhancement, or modification), you may have inadvertently referenced a standard field that is not intended for customer use.
  Namespace Confusion: There may be confusion between standard SAP fields and custom fields, especially if you are working with multiple namespaces.
  
  Solution:
  
  Check Field Definition: Verify the field you are trying to use. You can do this by checking the Data Dictionary (transaction SE11) to see if the field is part of the standard SAP objects.
  Use Customer Namespace: If you need to create a custom field, ensure that it is defined in the customer namespace (usually starting with a specific prefix like Z or Y).
  Modify Code: If you are modifying existing code, ensure that you are not trying to access standard fields directly. Instead, create a custom field in your namespace and use that.
  Consult Documentation: Review SAP documentation or consult with your SAP Basis or development team to understand the proper usage of fields and namespaces.
  Debugging: If you are unsure where the error is occurring, use the debugger to trace the execution and identify the exact point where the error is triggered.
  
  Related Information:
  
  Namespaces: In SAP, namespaces are used to differentiate between standard SAP objects and customer-specific developments. The customer namespace is typically reserved for custom developments to avoid conflicts with SAP standard objects.
  SAP Notes: Check SAP Notes for any known issues or updates related to the error message RE658. SAP frequently releases notes that provide solutions or workarounds for common issues.
  Development Guidelines: Follow SAP's development guidelines to ensure that your custom developments are compliant with best practices and do not interfere with standard functionality.
  
  If the issue persists after following these steps, consider reaching out to SAP support or your internal SAP team for further assistance.