How To Fix DMCLG371 - Name &1 does not begin with Y or Z (customer namespace)

SAP Error Message - Details

• Message type: E = Error

• Message class: DMCLG - DMC Tool Development

• Message number: 371

• Message text: Name &1 does not begin with Y or Z (customer namespace)

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message DMCLG371 - Name &1 does not begin with Y or Z (customer namespace) ?

  The SAP error message DMCLG371 indicates that a certain object (like a data element, domain, or other development object) does not begin with the letters "Y" or "Z". In SAP, these prefixes are reserved for customer namespaces, which are used to ensure that custom developments do not conflict with standard SAP objects.
  Cause:
  The error occurs when you attempt to create or modify an object in the SAP system that does not adhere to the naming conventions for customer namespaces. Specifically, the object name must start with "Y" or "Z" to be recognized as a custom object.
  Solution:
  To resolve this error, you should rename the object you are trying to create or modify so that it begins with either "Y" or "Z". Here are the steps you can follow:
  
  
  Identify the Object: Determine which object is causing the error. The error message should provide the name of the object (indicated by &1).
  
  
  Rename the Object: Change the name of the object to start with "Y" or "Z". For example, if the object is named MY_OBJECT, you could rename it to Y_MY_OBJECT or Z_MY_OBJECT.
  
  
  Check Naming Conventions: Ensure that the new name follows SAP's naming conventions for custom objects. This includes avoiding special characters and ensuring that the name is not too long.
  
  
  Re-attempt the Action: After renaming the object, try to perform the action again that triggered the error.
  
  
  Related Information:
  
  
  Namespace Management: SAP provides a mechanism for managing namespaces to avoid conflicts between standard SAP objects and custom developments. The customer namespace is designated for custom developments, and it is important to adhere to these conventions.
  
  
  Development Guidelines: Familiarize yourself with SAP's development guidelines and best practices to avoid similar issues in the future. This includes understanding the use of namespaces, naming conventions, and object types.
  
  
  Transport Requests: If the object is part of a transport request, ensure that the transport request is updated with the new object name.
  
  
  By following these steps, you should be able to resolve the DMCLG371 error and continue with your development work in SAP.