How To Fix /IWBEP/CM_V4_MED053 - Singleton '&1' not found

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/CM_V4_MED -

• Message number: 053

• Message text: Singleton '&1' not found

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWBEP/CM_V4_MED053 - Singleton '&1' not found ?

  The SAP error message /IWBEP/CM_V4_MED053 Singleton '&1' not found typically occurs in the context of SAP Gateway and OData services. This error indicates that the system is unable to find a specific singleton entity that is expected to be present in the OData service.
  Cause:
  
  Missing Singleton Definition: The singleton entity you are trying to access is not defined in the OData service metadata.
  Incorrect URL: The URL used to access the OData service may be incorrect, leading to the system looking for a non-existent singleton.
  Authorization Issues: The user may not have the necessary authorizations to access the singleton entity.
  Service Activation: The OData service may not be properly activated or registered in the SAP Gateway.
  Data Issues: The underlying data may not exist in the database, leading to the singleton not being found.
  
  Solution:
  
  Check OData Service Metadata: Verify that the singleton entity is defined in the OData service metadata. You can do this by accessing the service's metadata URL (e.g., /sap/opu/odata/sap/<service_name>/$metadata).
  Verify URL: Ensure that the URL you are using to access the OData service is correct and follows the expected format for accessing the singleton.
  Check Authorizations: Ensure that the user has the necessary authorizations to access the OData service and the specific singleton entity.
  Activate/Regenerate Service: If the service is not activated, go to the SAP Gateway Service Builder (transaction code /IWFND/MAINT_SERVICE) and activate the service. If changes were made to the service, you may need to regenerate it.
  Check Data Availability: Ensure that the data for the singleton entity exists in the underlying database. You can check this by querying the relevant database table directly.
  Debugging: If the issue persists, consider debugging the OData service to trace where the error occurs and gather more information about the missing singleton.
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to OData services and the specific error message for any known issues or patches.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  Documentation: Review the official SAP documentation on OData services and SAP Gateway for best practices and troubleshooting steps.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution.