/BOBF/CONF_MODEL_API046 - Target Alt. Key is unique: multiplicity 0..1 or 1..1 is required (&1)

SAP Error Message - Details

• Message type: E = Error

• Message class: /BOBF/CONF_MODEL_API -

• Message number: 046

• Message text: Target Alt. Key is unique: multiplicity 0..1 or 1..1 is required (&1)

Self-Explanatory Message

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AnswerBot

• What is the cause and solution for SAP error message /BOBF/CONF_MODEL_API046 - Target Alt. Key is unique: multiplicity 0..1 or 1..1 is required (&1) ?

  The SAP error message /BOBF/CONF_MODEL_API046 indicates that there is an issue with the uniqueness of a target alternative key in a Business Object Framework (BOF) configuration. Specifically, the error message states that the target alternative key must have a multiplicity of either 0..1 or 1..1, but the current configuration does not meet this requirement.
  Cause:
  
  Multiplicity Constraint Violation: The error typically arises when the system expects a unique key (which can either be optional or mandatory) but finds multiple entries or a configuration that allows for more than one instance of the key.
  Data Model Configuration: The configuration of the data model may not be set up correctly, leading to conflicts in how keys are defined and used.
  Data Integrity Issues: There may be existing data in the database that violates the expected uniqueness constraint.
  
  Solution:
  
  
  Check Data Model Configuration:
  
  Review the configuration of the Business Object in the SAP system. Ensure that the target alternative key is defined correctly with the appropriate multiplicity settings.
  If you are using the SAP Business Object Processing Framework (BOPF), check the definitions in the BOPF configuration to ensure that the keys are set up correctly.
  
  
  
  Data Cleanup:
  
  If there are existing records that violate the uniqueness constraint, you may need to clean up the data. This could involve deleting or merging records to ensure that the target alternative key is unique as required.
  
  
  
  Adjust Key Definitions:
  
  If the business logic allows for multiple entries, consider adjusting the multiplicity settings in the data model to accommodate this. However, this should be done with caution and in accordance with business requirements.
  
  
  
  Testing:
  
  After making changes, test the configuration to ensure that the error does not reoccur. This may involve creating new records or modifying existing ones to verify that the uniqueness constraint is respected.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for specific guidance on configuring alternative keys and understanding multiplicity constraints in the context of your specific version of SAP.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance on configuration best practices.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have implemented.
  BOPF Documentation: Review the official SAP documentation on the Business Object Processing Framework for detailed information on configuring business objects and handling keys.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.