How To Fix RS_ADSO_MODEL057 - Field &2: Key or index must not contain fields of data type &1

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 057

• Message text: Field &2: Key or index must not contain fields of data type &1

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RS_ADSO_MODEL057 - Field &2: Key or index must not contain fields of data type &1 ?

  The SAP error message RS_ADSO_MODEL057 indicates that there is an issue with the definition of a key or index in an Advanced DataStore Object (ADSO). Specifically, the error states that the key or index must not contain fields of a certain data type, which is specified in the message.
  Cause:
  The error typically arises when you attempt to include fields of a certain data type (e.g., LOB, BLOB, CLOB, etc.) in the key or index of the ADSO. In SAP BW/4HANA, certain data types are not allowed in keys or indexes because they are not suitable for indexing or do not support the necessary operations for key fields.
  Solution:
  To resolve this error, you should:
  
  
  Review the Key Definition: Check the key fields defined for your ADSO. Ensure that none of the fields included in the key or index are of the data type that is causing the error.
  
  
  Modify the Data Model:
  
  If you find that a field of an unsupported data type is included in the key, consider removing it from the key definition.
  If the field is necessary for your data model, you may need to redesign your data model to accommodate this requirement. This could involve creating a separate field that can serve as a key or index.
  
  
  
  Data Type Adjustment: If possible, change the data type of the field that is causing the issue to a supported type. This may involve altering the underlying data source or transformation logic.
  
  
  Consult Documentation: Refer to the SAP documentation for the specific version of BW/4HANA you are using to understand the limitations and requirements for key and index definitions.
  
  
  Testing: After making the necessary changes, test the ADSO to ensure that the error is resolved and that the data model behaves as expected.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or updates regarding this error message.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have implemented.
  Data Modeling Best Practices: Familiarize yourself with best practices for data modeling in SAP BW/4HANA to avoid similar issues in the future.
  
  By following these steps, you should be able to resolve the RS_ADSO_MODEL057 error and successfully define your ADSO without including unsupported data types in the key or index.