How To Fix RS_ADSO_MODEL156 - Having both a hash definition and a key definition is not supported

RS_ADSO_MODEL156 - Overview

• Message type: E = Error

• Message class: RS_ADSO_MODEL - Messages related to the Datastore Object Backend

• Message number: 156

• Message text: Having both a hash definition and a key definition is not supported

Self-Explanatory Message

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RS_ADSO_MODEL156 - Details

• The SAP error message RS_ADSO_MODEL156, which states "Having both a hash definition and a key definition is not supported," typically occurs in the context of SAP BW/4HANA or SAP BW on HANA when working with Advanced DataStore Objects (ADSO). This error indicates a conflict in the data model configuration where both a hash key and a key definition are being used simultaneously, which is not allowed.
  
  Cause:
  
  Conflicting Key Definitions: The error arises when you have defined both a hash key and a traditional key in the same ADSO. A hash key is used for performance optimization, while a key definition is used for data integrity and uniqueness.
  Model Configuration: The configuration of the ADSO might have been set up incorrectly, leading to the inclusion of both types of keys.
  
  
  Solution:
  To resolve this error, you need to adjust the key definitions in your ADSO model:
  
  
  Review Key Definitions:
  
  Go to the ADSO model in the SAP