How To Fix Q6156 - Information structure &1: error in the field selection for index &2

SAP Error Message - Details

• Message type: E = Error

• Message class: Q6 - Archive Information System

• Message number: 156

• Message text: Information structure &1: error in the field selection for index &2

What causes this issue?

You entered the field &V4& in index position &V3& of the index &V2&
belonging to information structure &V1&. However, as the field already
occupies the position 1 to &V3&-1, this is not allowed. Each field of
an info structure can only be used once in an index.

System Response

The information structure will not be activated.
The index can only be created after the error has been corrected.

How to fix this error?

After revising the index, delete the info structure table and then
reactivate the info structure.

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 Q6156 - Information structure &1: error in the field selection for index &2 ?

  The SAP error message Q6156 indicates that there is an issue with the field selection for an index in an information structure. This typically occurs in the context of SAP's Quality Management (QM) module, where information structures are used to summarize and analyze data.
  Cause:
  The error can be caused by several factors, including:
  
  Incorrect Field Selection: The fields defined in the information structure may not match the fields available in the underlying database tables or may not be correctly configured.
  Missing Fields: If a field that is required for the index is missing or has been deleted from the structure, this can lead to the error.
  Data Dictionary Issues: There may be inconsistencies or errors in the data dictionary related to the information structure or the index.
  Transport Issues: If the information structure was transported from one system to another, there may be inconsistencies in the configuration.
  
  Solution:
  To resolve the error, you can take the following steps:
  
  
  Check Field Selection:
  
  Go to the configuration of the information structure in transaction code OMQ1 (for QM) or the relevant transaction for your module.
  Verify that all fields selected for the index are valid and exist in the underlying tables.
  
  
  
  Rebuild the Index:
  
  If the field selection is correct, try to rebuild the index. This can often resolve issues related to inconsistencies.
  Use transaction code OMQ2 to manage the indexes and rebuild them if necessary.
  
  
  
  Review Data Dictionary:
  
  Check the data dictionary (transaction code SE11) for the information structure and ensure that all fields are correctly defined and active.
  
  
  
  Check Transport Logs:
  
  If the issue arose after a transport, review the transport logs to identify any errors or warnings that may have occurred during the transport process.
  
  
  
  Consult SAP Notes:
  
  Search for relevant SAP Notes in the SAP Support Portal that may address this specific error message or provide additional troubleshooting steps.
  
  
  
  Contact SAP Support:
  
  If the issue persists after trying the above steps, consider reaching out to SAP Support for further assistance.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as OMQ1, OMQ2, and SE11 for managing information structures and indexes.
  Documentation: Review SAP documentation related to information structures and indexes in the QM module for best practices and configuration guidelines.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to identify and resolve the cause of the Q6156 error message in SAP.