How To Fix WER029 - Structure type &1 is already in use

SAP Error Message - Details

• Message type: E = Error

• Message class: WER - Messages for the package WER

• Message number: 029

• Message text: Structure type &1 is already in use

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message WER029 - Structure type &1 is already in use ?

  Certainly! Here's detailed information about the SAP error message:
  
  SAP Error Message:
  WER029 - Structure type &1 is already in use
  
  Cause:
  This error occurs when you try to create or define a structure type (data type) in the ABAP Dictionary (SE11) or during development, but the name you are trying to assign to the structure type already exists in the system. SAP does not allow two different structure types to have the same name.
  
  Explanation:
  
  Structure types in SAP must have unique names.
  If you attempt to create a new structure type with a name that is already assigned to an existing structure type, the system throws this error.
  This can also happen if you try to activate or transport an object that conflicts with an existing structure type name.
  
  
  Solution:
  
  
  Check Existing Structure Types:
  
  Go to transaction SE11 (Data Dictionary).
  Enter the structure type name you want to create.
  If it exists, you will see the existing structure.
  
  
  
  Rename Your Structure Type:
  
  Choose a different, unique name for your new structure type.
  Follow your naming conventions to avoid conflicts.
  
  
  
  Check for Transport or Activation Issues:
  
  If the error occurs during transport or activation, check if the structure type already exists in the target system.
  Coordinate with your Basis or transport team to resolve conflicts.
  
  
  
  Delete or Adjust Existing Structure (if applicable):
  
  If the existing structure type is obsolete or incorrectly created, and you have authorization, you may delete or adjust it.
  Be cautious: deleting or changing existing dictionary objects can impact other developments.
  
  
  
  
  Related Information:
  
  Transaction SE11: Used to create, display, and modify data dictionary objects including structure types.
  Naming Conventions: Follow your organization's naming conventions to avoid conflicts.
  Transport Management: Conflicts can arise if the same structure type is created independently in different systems.
  SAP Notes: Check SAP Notes or OSS for any known issues related to this error if it occurs unexpectedly.
  
  
  Summary:
  
  
  
  Aspect
  Details
  
  
  
  
  Error
  WER029 - Structure type &1 is already in use
  
  
  Cause
  Attempt to create a structure type with a name that already exists
  
  
  Solution
  Use a unique name; check existing structures; resolve transport conflicts
  
  
  Transaction
  SE11 (Data Dictionary)
  
  
  
  
  If you need further assistance, please provide the context in which the error occurs (e.g., during development, transport, activation) and the exact structure type name you are working with.