How To Fix /IWFND/CM_CONSUMER057 - Inbound mapper method: mapRead

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWFND/CM_CONSUMER -

• Message number: 057

• Message text: Inbound mapper method: mapRead

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWFND/CM_CONSUMER057 - Inbound mapper method: mapRead ?

  The SAP error message /IWFND/CM_CONSUMER057 typically occurs in the context of SAP Gateway and OData services. This error indicates that there is an issue with the inbound mapping of a read operation in the OData service. The specific message usually points to a problem with the mapping of the request to the corresponding data model or entity.
  Cause
  The error can be caused by several factors, including:
  
  Incorrect Entity Set Name: The entity set name in the OData request may not match the entity set defined in the service.
  Missing or Incorrect Metadata: The metadata for the OData service may not be correctly defined or may be missing required information.
  Data Model Issues: There may be issues with the underlying data model, such as missing fields or incorrect data types.
  Authorization Issues: The user may not have the necessary authorizations to access the requested data.
  Service Activation: The OData service may not be properly activated or registered in the SAP Gateway.
  Request Format: The format of the incoming request may not conform to the expected OData format.
  
  Solution
  To resolve the /IWFND/CM_CONSUMER057 error, you can take the following steps:
  
  Check Entity Set Name: Verify that the entity set name in the request matches the entity set defined in the OData service.
  Review Metadata: Access the service metadata (usually available at the URL http://<host>:<port>/sap/opu/odata/sap/<service_name>/$metadata) and ensure that all entities and properties are correctly defined.
  Debug the Service: Use transaction code /IWFND/ERROR_LOG to check for detailed error logs. You can also debug the OData service to identify where the mapping fails.
  Check Authorizations: Ensure that the user making the request has the necessary authorizations to access the OData service and the underlying data.
  Activate the Service: Ensure that the OData service is activated in the SAP Gateway using transaction code /IWFND/MAINT_SERVICE.
  Validate Request Format: Ensure that the request is formatted correctly according to OData standards. Use tools like Postman or Fiddler to inspect the request and response.
  
  Related Information
  
  SAP Gateway: Familiarize yourself with the SAP Gateway framework and how it handles OData services.
  OData Protocol: Understanding the OData protocol can help in troubleshooting issues related to data access and manipulation.
  SAP Notes: Check for any relevant SAP Notes that may address known issues or provide additional guidance on this error.
  Community Forums: Engage with SAP community forums or support channels for additional insights and solutions from other users who may have encountered similar issues.
  
  By following these steps, you should be able to identify and resolve the cause of the /IWFND/CM_CONSUMER057 error in your SAP environment.