How To Fix /IWBEP/CM_V4_MED319 - Entity delta status prop. '&1' in entity type '&2' has incorrect facets

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/CM_V4_MED -

• Message number: 319

• Message text: Entity delta status prop. '&1' in entity type '&2' has incorrect facets

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message /IWBEP/CM_V4_MED319 - Entity delta status prop. '&1' in entity type '&2' has incorrect facets ?

  The SAP error message /IWBEP/CM_V4_MED319 indicates that there is an issue with the delta status property of an entity in an OData service. This error typically arises when the entity type has been defined with incorrect facets or properties that do not align with the expected structure for delta handling in OData.
  Cause:
  
  Incorrect Facets: The entity type may have been defined with properties that are not compatible with the delta mechanism. For example, the delta status property might be missing or incorrectly configured.
  Model Definition Issues: There could be inconsistencies in the metadata definition of the OData service, such as missing annotations or incorrect data types.
  Service Implementation Errors: The implementation of the OData service might not correctly handle the delta functionality, leading to discrepancies in the expected output.
  
  Solution:
  
  Check Entity Definition: Review the entity type definition in the OData model. Ensure that the delta status property is correctly defined and that all required facets are present.
  Validate Metadata: Use the SAP Gateway Client or similar tools to validate the metadata of the OData service. Look for any discrepancies or missing annotations that could affect delta handling.
  Adjust Annotations: Ensure that the annotations related to the entity type and its properties are correctly set. This includes checking for @odata.delta annotations and ensuring they are properly configured.
  Debug Implementation: If the issue persists, debug the implementation of the OData service to identify any logical errors in how the delta status is being managed.
  Consult Documentation: Refer to the SAP documentation for OData services and delta handling to ensure compliance with best practices.
  
  Related Information:
  
  OData Delta Mechanism: Understand how the delta mechanism works in OData services, including the use of delta tokens and how they are generated and consumed.
  SAP Gateway: Familiarize yourself with the SAP Gateway framework, as it provides the tools and environment for developing OData services.
  SAP Notes: Check for any relevant SAP Notes that may address known issues or provide patches related to this error message.
  
  By following these steps, you should be able to identify and resolve the issue causing the /IWBEP/CM_V4_MED319 error in your SAP OData service.