How To Fix SBD_MESSAGES012 - Cardinality &1 is invalid; valid values are "1","0..1","0..*","1..*"

SAP Error Message - Details

• Message type: E = Error

• Message class: SBD_MESSAGES - Messages for source based DDIC

• Message number: 012

• Message text: Cardinality &1 is invalid; valid values are "1","0..1","0..*","1..*"

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SBD_MESSAGES012 - Cardinality &1 is invalid; valid values are "1","0..1","0..*","1..*" ?

  The SAP error message SBD_MESSAGES012 indicates that there is an issue with the cardinality definition in your SAP system, specifically in the context of Service-Based Development (SBD) or similar configurations. Cardinality defines the number of instances of one entity that can be associated with instances of another entity. The valid cardinality values mentioned in the error message are:
  
  "1": Exactly one instance is required.
  "0..1": Zero or one instance is allowed.
  *"0.."**: Zero or more instances are allowed.
  *"1.."**: One or more instances are required.
  
  Cause
  The error typically arises when:
  
  The cardinality defined in your model or configuration does not match the expected values.
  There may be a typo or incorrect configuration in the data model or service definition.
  The system is trying to process a request or operation that violates the defined cardinality constraints.
  
  Solution
  To resolve this error, you can follow these steps:
  
  
  Check the Configuration: Review the configuration or data model where the cardinality is defined. Ensure that the cardinality is set to one of the valid values mentioned in the error message.
  
  
  Correct the Cardinality: If you find that the cardinality is incorrectly set (e.g., it might be set to a value like "2" or "1..2"), change it to one of the valid values.
  
  
  Validate the Model: After making changes, validate the model or configuration to ensure that there are no other issues.
  
  
  Test the Changes: Once the cardinality is corrected, test the functionality that was causing the error to ensure that it now works as expected.
  
  
  Consult Documentation: If you are unsure about the correct cardinality for your specific use case, refer to the SAP documentation or guidelines related to the specific module or service you are working with.
  
  
  Seek Help from SAP Support: If the issue persists after checking the configuration, consider reaching out to SAP support for further assistance.
  
  
  Related Information
  
  SAP Documentation: Always refer to the official SAP documentation for the specific module you are working with for detailed information on cardinality and data modeling.
  Community Forums: SAP Community and other forums can be helpful for finding similar issues faced by other users and their solutions.
  Version Specifics: Ensure that you are aware of any version-specific changes or requirements that may affect cardinality definitions.
  
  By following these steps, you should be able to identify and correct the cause of the SBD_MESSAGES012 error in your SAP system.