How To Fix AW126 - List version contains no line structure

SAP Error Message - Details

• Message type: E = Error

• Message class: AW - AuC messages

• Message number: 126

• Message text: List version contains no line structure

What causes this issue?

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

System Response

How to fix this error?

Maintain the display variant.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message AW126 - List version contains no line structure ?

  The SAP error message AW126 ("List version contains no line structure") typically occurs when you are trying to execute a report or transaction that requires a specific list version, but the list version you are using does not have an associated line structure defined. This can happen in various contexts, such as when working with reports in the SAP system that utilize list versions for output formatting.
  Cause:
  
  Missing Line Structure: The list version you are trying to use does not have a line structure defined. This means that the system does not know how to format the output for the report or transaction.
  Incorrect List Version: You may be using a list version that is not appropriate for the report or transaction you are executing.
  Configuration Issues: There may be configuration issues in the SAP system that prevent the list version from being recognized correctly.
  
  Solution:
  
  
  Check List Version Configuration:
  
  Go to the transaction code GRR1 (for report variants) or GRR2 (for list versions) to check the configuration of the list version you are using.
  Ensure that the list version has a valid line structure assigned to it.
  
  
  
  Assign a Line Structure:
  
  If the list version does not have a line structure, you will need to create or assign one. This can typically be done in the same configuration area where you checked the list version.
  Make sure to save your changes.
  
  
  
  Use a Different List Version:
  
  If the current list version is not suitable, try using a different list version that is known to have a valid line structure.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for specific details on how to configure list versions and line structures for the particular report or transaction you are working with.
  
  
  
  Contact SAP Support:
  
  If you are unable to resolve the issue, consider reaching out to your SAP support team or SAP directly for assistance.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as GRR1, GRR2, and others that may be used for managing report variants and list versions.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  User Authorization: Ensure that you have the necessary authorizations to modify list versions and line structures in the SAP system.
  
  By following these steps, you should be able to resolve the AW126 error and successfully execute your report or transaction.