How To Fix MDG_DT_DATA_MODEL035 - Enter a valid cardinality for relation &1

SAP Error Message - Details

• Message type: E = Error

• Message class: MDG_DT_DATA_MODEL - Messages for the Configuration Workbench Model Access API

• Message number: 035

• Message text: Enter a valid cardinality for relation &1

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message MDG_DT_DATA_MODEL035 - Enter a valid cardinality for relation &1 ?

  The SAP error message MDG_DT_DATA_MODEL035 ("Enter a valid cardinality for relation &1") typically occurs in the context of Master Data Governance (MDG) when defining relationships between data models. This error indicates that the cardinality specified for a relationship is not valid or acceptable according to the rules defined in the data model.
  Cause:
  The error is usually caused by one of the following issues:
  
  Invalid Cardinality Specification: The cardinality defined for the relationship does not conform to the expected values. Cardinality defines the number of instances of one entity that can or must be associated with instances of another entity.
  Inconsistent Data Model Configuration: There may be inconsistencies in the data model configuration, such as conflicting definitions or missing parameters.
  Data Model Constraints: The relationship may violate constraints set by the data model, such as minimum or maximum cardinality requirements.
  
  Solution:
  To resolve the error, you can take the following steps:
  
  
  Check Cardinality Values: Ensure that the cardinality values you are trying to set for the relationship are valid. Common cardinality values include:
  
  1: One (mandatory)
  0..1: Zero or one (optional)
  1..*: One or more (mandatory)
  0..*: Zero or more (optional)
  
  
  
  Review Data Model Configuration: Go through the data model configuration to ensure that all relationships and their cardinalities are defined correctly. Look for any inconsistencies or conflicts.
  
  
  Consult Documentation: Refer to the SAP documentation for Master Data Governance to understand the expected cardinality settings and any constraints that may apply to your specific data model.
  
  
  Use the Data Model Editor: If you are using the Data Model Editor in SAP MDG, ensure that you are following the correct steps to define relationships and cardinalities. Validate the model after making changes.
  
  
  Test Changes: After making adjustments, test the changes to ensure that the error no longer occurs and that the data model behaves as expected.
  
  
  Seek Help from SAP Support: If you are unable to resolve the issue, consider reaching out to SAP support or consulting with an SAP expert who can provide guidance based on your specific configuration and requirements.
  
  
  Related Information:
  
  SAP MDG Documentation: Review the official SAP documentation for Master Data Governance for detailed information on data modeling and cardinality definitions.
  SAP Community: Engage with the SAP Community forums where you can find discussions and solutions related to similar issues faced by other users.
  Training and Tutorials: Consider SAP training resources or tutorials that cover data modeling in MDG to enhance your understanding of the concepts and best practices.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.