How To Fix UCM0021 - Type &1 is not a logical name (first character must be a "&2")

SAP Error Message - Details

• Message type: E = Error

• Message class: UCM0 - Messages for Data Basis, Cons Area, ...

• Message number: 021

• Message text: Type &1 is not a logical name (first character must be a "&2")

What causes this issue?

The passed type name &V1& does not have the format of a logical name of
a generated object for a consolidation area. Valid logical names begin
with the character &V2&.

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?

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 UCM0021 - Type &1 is not a logical name (first character must be a "&2") ?

  The SAP error message UCM0021 indicates that there is an issue with a logical name in the context of the SAP system. Specifically, the error message states that the type of the logical name is not valid, and it specifies that the first character of the logical name must be a certain character (denoted as "&2").
  Cause:
  The error typically arises when:
  
  A logical name is being defined or used in a configuration or transaction, and the name does not conform to the expected naming conventions.
  The first character of the logical name does not match the required character type (e.g., it might need to start with a specific letter or symbol).
  There may be a typo or formatting issue in the logical name being entered.
  
  Solution:
  To resolve the UCM0021 error, you can take the following steps:
  
  
  Check the Logical Name: Review the logical name you are trying to use. Ensure that it adheres to the naming conventions specified by SAP. The first character should match the expected character type as indicated in the error message.
  
  
  Correct the Name: If the logical name does not start with the required character, modify it accordingly. For example, if the error message indicates that it should start with a specific letter, ensure that the logical name is updated to reflect this.
  
  
  Consult Documentation: Refer to the SAP documentation or configuration guides related to the specific module or area you are working in. This can provide insights into the correct naming conventions and any other requirements.
  
  
  Test the Changes: After making the necessary corrections, re-attempt the action that triggered the error to see if it has been resolved.
  
  
  Seek Help: If you are unable to resolve the issue, consider reaching out to your SAP support team or consulting with an SAP expert who can provide further assistance.
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or updates related to this error message. SAP frequently publishes notes that can provide additional context or solutions.
  Transaction Codes: If you are working within a specific transaction code, ensure that you are following the correct procedures and guidelines for that transaction.
  System Configuration: Sometimes, the error may be related to system configuration settings. Ensure that all relevant configurations are set up correctly.
  
  By following these steps, you should be able to identify and correct the issue causing the UCM0021 error in your SAP system.