How To Fix UMK023 - SAP Name must begin with "0"

SAP Error Message - Details

• Message type: E = Error

• Message class: UMK - Measures

• Message number: 023

• Message text: SAP Name must begin with "0"

What causes this issue?

You have attempted to assign a technical name to an element but the
name is not permitted. Permitted names must begin with the figure '0'.
Note: Technical names beginning with '0' are reserved for SAP.

How to fix this error?

Assign a name that begins with '0' to the element.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message UMK023 - SAP Name must begin with "0" ?

  The SAP error message UMK023, which states "SAP Name must begin with '0'," typically occurs when you are trying to create or modify an object in SAP that requires a specific naming convention. This error is often related to user-defined objects, such as custom programs, function modules, or other development objects.
  Cause:
  The error arises because SAP enforces certain naming conventions for various types of objects. In many cases, custom objects must start with a specific character or set of characters. For example, in SAP, custom development objects often need to start with "Z" or "Y" to differentiate them from standard SAP objects. However, in some contexts, particularly with certain types of naming conventions, the system may require that names start with "0".
  Solution:
  To resolve the UMK023 error, you should:
  
  
  Check Naming Conventions: Ensure that the name you are trying to use adheres to the required naming conventions. If the system requires names to start with "0", make sure you are following that guideline.
  
  
  Modify the Name: If your current name does not start with "0", change it to comply with the naming rules. For example, if you are creating a custom object, you might need to rename it to start with "0" or another valid prefix as specified by your organization's naming standards.
  
  
  Consult Documentation: Review the relevant SAP documentation or guidelines provided by your organization regarding naming conventions for the specific type of object you are working with.
  
  
  Check for Conflicts: Ensure that the name you are trying to use does not conflict with existing objects in the system. If an object with the same name already exists, you may need to choose a different name.
  
  
  Seek Help from SAP Support: If you are unsure about the naming conventions or if the error persists after making changes, consider reaching out to your SAP support team or consulting SAP's official support channels for further assistance.
  
  
  Related Information:
  
  SAP Naming Conventions: Familiarize yourself with the general naming conventions in SAP, which often include prefixes like "Z" or "Y" for custom objects.
  Development Guidelines: Review your organization's development guidelines, as they may have specific rules regarding object naming.
  Transaction Codes: If you are working in a specific transaction (e.g., SE80 for Object Navigator), ensure you are following the correct procedures for creating or modifying objects.
  
  By following these steps, you should be able to resolve the UMK023 error and successfully create or modify the desired object in SAP.