How To Fix WXP138 - Caution: name &1 is in the customer name range

SAP Error Message - Details

• Message type: E = Error

• Message class: WXP - Retail Planning

• Message number: 138

• Message text: Caution: name &1 is in the customer name range

Self-Explanatory Message

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• What is the cause and solution for SAP error message WXP138 - Caution: name &1 is in the customer name range ?

  Certainly! Here's a detailed explanation for the SAP error message WXP138: Caution: name &1 is in the customer name range:
  
  Error Message
  WXP138: Caution: name &1 is in the customer name range
  
  Cause
  This warning occurs when you try to create or use an object (such as a function module, program, class, or other repository object) whose name falls within the customer namespace or customer name range.
  In SAP, certain namespaces are reserved for customer developments to avoid conflicts with SAP standard objects. These namespaces typically start with:
  
  Y
  Z
  Or other namespaces assigned specifically to the customer (e.g., /XYZ/)
  
  If you create an object with a name starting with these prefixes, SAP issues this caution to remind you that the name is reserved for customer-specific developments.
  
  Explanation
  
  SAP standard objects use namespaces that do not start with Y or Z.
  Customer developments should use these namespaces to avoid conflicts with SAP standard objects.
  The system issues this warning to ensure you are aware that the name you are using is in the customer namespace.
  This is not an error, but a caution to prevent accidental overwriting or naming conflicts.
  
  
  Solution / Recommended Action
  
  If you are creating a customer-specific object, you can safely ignore this warning because it is expected that customer objects use these namespaces.
  If you are creating an SAP standard or partner object, you should not use names in the customer namespace. Instead, use the appropriate SAP namespace.
  Always follow your organization's naming conventions for custom developments.
  If you want to suppress this warning, you can configure the system or adjust your development process, but generally, it is recommended to keep this caution active to avoid naming conflicts.
  
  
  Additional Information
  
  The customer namespace is a best practice to separate SAP standard objects from custom developments.
  SAP recommends using namespaces starting with Y or Z for all custom developments.
  You can check the namespaces assigned to your customer by using transaction SNRO (Number Range Objects) or by consulting your SAP Basis/Development team.
  This message is part of the naming conventions and namespace management in SAP to ensure system integrity and upgrade compatibility.
  
  
  Summary
  
  
  
  Aspect
  Details
  
  
  
  
  Message
  WXP138: Caution: name &1 is in the customer name range
  
  
  Cause
  Object name starts with a customer namespace prefix (e.g., Y, Z)
  
  
  Effect
  Warning to indicate the object is in the customer namespace
  
  
  Solution
  Use customer namespace for custom objects; ignore warning if intentional
  
  
  Notes
  Helps avoid conflicts between SAP standard and custom objects
  
  
  
  
  If you want, I can also help you with how to check or configure namespaces or suppress this warning, just let me know!