How To Fix J3605 - First identifying attribute is not unique

SAP Error Message - Details

• Message type: E = Error

• Message class: J3 - Dialog Messages for Data Pool Entry Transactions

• Message number: 605

• Message text: First identifying attribute is not unique

What causes this issue?

The attribute used for identification/assignment is not unique.
This is the result of one of the following:
The transfer contains another record with the same identifying attribute
(applies to non-<LS>KEY</> fields).
The transfer contains another record with a different identifying
attribute that leads to the same database record.
The transfer contains at least two records with this attribute.
&SYSTEM_RESPONSE& (EDT only)
This error is serious enough that the record was placed on the hard
drive and not in the batch input session.
This error takes priority over any other errors in this record.
&WHAT_TO_DO& (EDT only)
Generate the record anew and check the identifying attributes.
&HINTS&

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message J3605 - First identifying attribute is not unique ?

  The SAP error message J3605, "First identifying attribute is not unique," typically occurs in the context of SAP's data modeling or reporting tools, such as SAP BW (Business Warehouse) or SAP HANA. This error indicates that the system has encountered a situation where the first identifying attribute (or key) used in a data model or query is not unique, which can lead to ambiguity in data retrieval or processing.
  Cause:
  
  
  Non-Unique Key Values: The primary cause of this error is that the attribute designated as the first identifying attribute has duplicate values in the dataset. This means that multiple records share the same value for this attribute, which violates the uniqueness requirement.
  
  
  Data Model Configuration: The configuration of the data model may not be set up correctly, leading to the selection of a non-unique attribute as the primary key.
  
  
  Data Quality Issues: There may be underlying data quality issues, such as incorrect data entry, lack of data cleansing, or improper data integration processes.
  
  
  Solution:
  
  
  Identify Duplicates: Use SQL queries or data profiling tools to identify the records that have duplicate values for the first identifying attribute. This can help you understand the extent of the issue.
  
  
  Data Cleansing: Once duplicates are identified, you may need to clean the data. This could involve:
  
  Removing duplicates.
  Merging records where appropriate.
  Correcting data entry errors.
  
  
  
  Change the Key Attribute: If the first identifying attribute cannot be made unique, consider changing the key attribute to one that is unique. This may involve modifying the data model or the query to use a different attribute as the primary key.
  
  
  Review Data Model Configuration: Ensure that the data model is configured correctly. Check the settings for the attributes and ensure that the first identifying attribute is set to a unique field.
  
  
  Consult Documentation: Refer to SAP documentation or support resources for specific guidance related to your version of SAP and the context in which the error occurs.
  
  
  Related Information:
  
  Data Modeling Best Practices: Familiarize yourself with best practices for data modeling in SAP BW or HANA to avoid similar issues in the future.
  SAP Notes and Support: Check SAP Notes for any known issues or patches related to this error message.
  Training and Resources: Consider training or resources on data quality management and data modeling in SAP to enhance your understanding and skills in this area.
  
  By addressing the root cause of the error and ensuring that the first identifying attribute is unique, you can resolve the J3605 error and improve the integrity of your data models and reports.