How To Fix ESH_TREX_ADMIN112 - The relation has cardinality &1:&2

SAP Error Message - Details

• Message type: E = Error

• Message class: ESH_TREX_ADMIN - TREX Indexing and Index Administration

• Message number: 112

• Message text: The relation has cardinality &1:&2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message ESH_TREX_ADMIN112 - The relation has cardinality &1:&2 ?

  The SAP error message ESH_TREX_ADMIN112 with the description "The relation has cardinality &1:&2" typically occurs in the context of the SAP Enterprise Search (TREX) administration. This error indicates that there is a mismatch in the expected cardinality of a relationship between two entities in the data model.
  Cause:
  The cardinality refers to the number of instances of one entity that can or must be associated with instances of another entity. The error message suggests that the relationship defined in the data model does not match the actual data being processed. For example, if the system expects a one-to-many relationship (1:N) but finds a many-to-many relationship (N:M), it will trigger this error.
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Check Data Model Configuration:
  
  Review the data model configuration in the TREX administration. Ensure that the cardinality defined for the relationships between entities is correct and matches the actual data.
  
  
  
  Data Consistency:
  
  Verify the data being indexed. Ensure that the data adheres to the defined relationships. If there are inconsistencies, you may need to clean or adjust the data.
  
  
  
  Adjust Cardinality:
  
  If the data model is incorrect, you may need to adjust the cardinality settings in the data model to reflect the actual relationships in your data.
  
  
  
  Re-indexing:
  
  After making changes to the data model or correcting data inconsistencies, you may need to re-index the data to ensure that the changes take effect.
  
  
  
  Consult Documentation:
  
  Refer to the SAP documentation for Enterprise Search and TREX for specific guidelines on configuring relationships and cardinality.
  
  
  
  Check for Updates:
  
  Ensure that your SAP system is up to date with the latest patches and updates, as there may be fixes related to this issue in newer versions.
  
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  TREX Administration Guide: Review the TREX administration guide for detailed information on configuring data models and relationships.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  
  If the problem persists after following these steps, consider reaching out to SAP support for further assistance.