How To Fix /BOBF/CONF_MODEL_API047 - Target Alt. Key is non-unique: multiplicity 0..n or 1..n is required (&1)

SAP Error Message - Details

• Message type: E = Error

• Message class: /BOBF/CONF_MODEL_API -

• Message number: 047

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

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /BOBF/CONF_MODEL_API047 - Target Alt. Key is non-unique: multiplicity 0..n or 1..n is required (&1) ?

  The SAP error message /BOBF/CONF_MODEL_API047 indicates that there is an issue with the uniqueness of the target alternative key in a Business Object Framework (BOF) configuration model. This error typically arises when the system expects a unique key for a certain operation, but the provided key is not unique, leading to ambiguity in the data retrieval or manipulation process.
  Cause:
  
  Non-Unique Key: The error suggests that the target alternative key you are trying to use is not unique. This can happen if multiple records in the database match the criteria defined by the key.
  Multiplicity Constraints: The error message mentions that a multiplicity of 0..n or 1..n is required, which indicates that the system is expecting either zero or more (0..n) or one or more (1..n) instances of the key, but it is encountering a situation where the key is not uniquely identifiable.
  Data Integrity Issues: There may be data integrity issues in the underlying database where duplicate entries exist for the key that should be unique.
  
  Solution:
  
  Check Data for Duplicates: Investigate the underlying data to identify if there are duplicate entries for the key in question. You can run SQL queries or use transaction codes like SE16 or SE11 to check the relevant database tables.
  Adjust Key Configuration: If the key is supposed to be unique, you may need to adjust the configuration of the Business Object to ensure that the key is defined correctly and that it enforces uniqueness.
  Modify Data: If duplicates are found, you may need to clean up the data by removing or merging duplicate entries to ensure that the key is unique.
  Review Business Logic: Ensure that the business logic that generates or manipulates the data is correctly implemented to avoid creating duplicates in the future.
  Consult Documentation: Review the SAP documentation related to the Business Object Framework and the specific configuration model you are working with to ensure that you are following best practices.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional guidance on handling similar issues.
  Transaction Codes: Familiarize yourself with transaction codes like /BOBF/CONF_MODEL for configuration management and /BOBF/CONF_MODEL_API for API-related operations.
  Community Forums: Engage with SAP community forums or support channels where similar issues may have been discussed, and solutions shared by other users.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.