How To Fix /IWBEP/CM_MGW_RT227 - Value Control Properties not allowed inside a complex property

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/CM_MGW_RT -

• Message number: 227

• Message text: Value Control Properties not allowed inside a complex property

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWBEP/CM_MGW_RT227 - Value Control Properties not allowed inside a complex property ?

  The SAP error message /IWBEP/CM_MGW_RT227 indicates that there is an issue with the value control properties being used within a complex property in an OData service. This error typically arises when you are trying to define value control properties (like ValueList, ValueHelp, etc.) in a way that is not permitted by the OData service definition.
  Cause:
  
  Improper Definition: The error usually occurs when you attempt to define value control properties for a complex type or property that does not support them. Value control properties are generally meant for simple types (like strings, integers, etc.) and not for complex types.
  OData Model Configuration: The OData model might be incorrectly configured, leading to the system interpreting the complex property in a way that does not allow value control properties.
  
  Solution:
  
  Review the Data Model: Check the definition of the entity type and ensure that value control properties are only applied to simple properties. If you have a complex property, remove any value control properties associated with it.
  Adjust the Metadata: If you are using annotations in your metadata, ensure that they are correctly applied to the appropriate properties. Annotations for value control should only be applied to simple properties.
  Update the Service Implementation: If you are implementing the OData service, ensure that the logic for handling complex properties does not include value control properties.
  Testing: After making the necessary changes, test the OData service to ensure that the error is resolved and that the service behaves as expected.
  
  Related Information:
  
  OData Specification: Familiarize yourself with the OData specifications regarding complex types and value control properties. This will help you understand the limitations and proper usage.
  SAP Notes: Check for any relevant SAP Notes or documentation that might provide additional insights or updates regarding this error.
  Debugging: If the issue persists, consider enabling debugging for the OData service to trace the exact point of failure and gather more context about the error.
  
  By following these steps, you should be able to resolve the error and ensure that your OData service is correctly configured.