How To Fix USMD_CREQUEST_API031 - Singleton cardinality violated for entity &1

USMD_CREQUEST_API031 - Overview

• Message type: E = Error

• Message class: USMD_CREQUEST_API - Message Class for Change Request API

• Message number: 031

• Message text: Singleton cardinality violated for entity &1

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message USMD_CREQUEST_API031 - Singleton cardinality violated for entity &1 ?

  The SAP error message USMD_CREQUEST_API031 indicates that there is a violation of singleton cardinality for a specific entity in the context of the SAP Master Data Governance (MDG) application. This typically means that the system expected to find a single instance of a particular entity but found none or more than one.
  
  Cause:
  
  Data Model Configuration: The error often arises from incorrect configuration in the data model where the cardinality (the number of instances allowed) for an entity is not set correctly.
  Duplicate Entries: There may be duplicate entries in the database for the entity in question, which violates the singleton constraint.
  Incorrect Data Handling: The logic in the application or the data processing might be incorrectly handling the entity, leading to multiple instances being created or expected.
  Inconsistent Data State: The data state might be inconsistent due to previous operations that did not complete successfully, leaving the system in an unexpected state.
  
  
  Solution:
  
  Check Data Model