How To Fix /IWBEP/SBOD450 - Property '&1&2&3' having ABAP Type as Currency cannot be a Key Property.

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/SBOD -

• Message number: 450

• Message text: Property '&1&2&3' having ABAP Type as Currency cannot be a Key Property.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWBEP/SBOD450 - Property '&1&2&3' having ABAP Type as Currency cannot be a Key Property. ?

  The SAP error message /IWBEP/SBOD450 indicates that there is an issue with the definition of a property in an OData service. Specifically, it states that a property defined as a currency type cannot be used as a key property in the OData model. Here’s a breakdown of the cause, potential solutions, and related information:
  Cause
  
  Key Property Definition: In OData services, key properties are used to uniquely identify an entity. The error arises when a property of type Currency (which is typically defined as a decimal or float in ABAP) is incorrectly marked as a key property.
  Data Model Constraints: Currency values can have decimal places and are not suitable for unique identification, which is why they cannot be used as key properties.
  
  Solution
  To resolve this error, you need to modify the data model definition in the OData service:
  
  Identify the Property: Determine which property is causing the issue. The error message will indicate the property name (represented by &1&2&3).
  Change Property Type: If the property is indeed a currency type, you should not mark it as a key property. You can do this by:
  
  Accessing the OData service definition in the SAP Gateway Service Builder (transaction code SEGW).
  Navigating to the entity type where the property is defined.
  Removing the key property designation from the currency property.
  
  
  Add a Suitable Key Property: Ensure that there is another property in the entity that can serve as a key. This could be an ID or another unique identifier that is not a currency type.
  Regenerate the Service: After making the changes, regenerate the OData service and activate it.
  
  Related Information
  
  OData Key Properties: Key properties in OData must be of a type that can uniquely identify an entity instance. Common types include integers, strings, or GUIDs.
  Currency Data Type in ABAP: In ABAP, currency types are typically defined using the CURR or DEC data types, which are not suitable for key properties due to their nature of allowing decimal values.
  SAP Gateway: Familiarize yourself with the SAP Gateway and OData service development, as understanding the underlying principles will help prevent similar issues in the future.
  
  Additional Steps
  
  Testing: After making the changes, test the OData service to ensure that it functions correctly and that the error no longer appears.
  Documentation: Review SAP documentation on OData service development for best practices regarding key properties and data types.
  
  By following these steps, you should be able to resolve the error and ensure that your OData service is correctly defined.