How To Fix /BOBF/CONF_MODEL_API058 - Multiplicity 0..1 is required (&1)

SAP Error Message - Details

• Message type: E = Error

• Message class: /BOBF/CONF_MODEL_API -

• Message number: 058

• Message text: Multiplicity 0..1 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_API058 - Multiplicity 0..1 is required (&1) ?

  The SAP error message /BOBF/CONF_MODEL_API058 indicates that there is an issue with the multiplicity of a certain object or entity in the Business Object Framework (BOF) configuration. Specifically, the error message states that a multiplicity of 0..1 is required for a certain field or relationship, but the actual data being processed does not meet this requirement.
  Cause:
  
  Data Integrity Issue: The error typically arises when the system expects a relationship or field to have either zero or one instance (i.e., it can be optional), but the data being processed has more than one instance or is missing when it should be present.
  Configuration Error: There may be a misconfiguration in the Business Object Framework where the multiplicity constraints are not correctly defined.
  Business Logic Error: The logic implemented in the application may be trying to create or manipulate data in a way that violates the defined multiplicity constraints.
  
  Solution:
  
  Check Data: Review the data being processed to ensure that it adheres to the multiplicity constraints. If the field is supposed to have at most one value, ensure that there are no duplicates or that the field is not being populated with multiple values.
  Review Configuration: Check the configuration of the Business Object Framework to ensure that the multiplicity settings are correctly defined. This may involve looking at the data model or the specific business object configuration.
  Debugging: If you have access to the development environment, you can debug the code to identify where the violation occurs. Look for the specific API calls or data manipulations that lead to this error.
  Consult Documentation: Refer to the SAP documentation for the specific Business Object Framework you are working with. There may be additional guidelines or best practices for handling multiplicity constraints.
  Error Handling: Implement error handling in your application logic to gracefully manage situations where data does not meet the expected constraints.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional context or fixes.
  Community Forums: Engage with SAP community forums or support channels where similar issues may have been discussed.
  Testing: After making changes, ensure to test the application thoroughly to confirm that the issue is resolved and that no new issues have been introduced.
  
  If the problem persists after following these steps, it may be beneficial to reach out to SAP support for further assistance, providing them with detailed information about the error and the context in which it occurs.