How To Fix /IWBEP/CM_V4_MED191 - Entity type '&1': currency value property '&2' cannot be key

/IWBEP/CM_V4_MED191 - Overview

• Message type: E = Error

• Message class: /IWBEP/CM_V4_MED -

• Message number: 191

• Message text: Entity type '&1': currency value property '&2' cannot be key

Self-Explanatory Message

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/IWBEP/CM_V4_MED191 - Details

• The SAP error message /IWBEP/CM_V4_MED191 indicates that there is an issue with the definition of an entity type in an OData service. Specifically, the error states that a currency value property cannot be used as a key for the entity type. 
  
  Cause:
  
  
  Currency Value Properties: In OData, currency value properties are typically represented as a combination of a numeric value and a currency code. These properties are not suitable to be used as keys because keys should uniquely identify an entity, and currency values can change (e.g., due to exchange rate fluctuations).
  
  
  Model Definition: The error may arise from the way the entity type is defined in the data model. If a currency value property is mistakenly marked as a key in the metadata, this will trigger the error.
  
  
  
  Solution:
  
  
  Review Entity Type Definition: Check the definition of the entity type in the OData service. Ensure that the currency value property is not included