How To Fix /IWFND/CM_CONSUMER050 - Inbound mapper method: doReadBeforeUpdate

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWFND/CM_CONSUMER -

• Message number: 050

• Message text: Inbound mapper method: doReadBeforeUpdate

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 /IWFND/CM_CONSUMER050 - Inbound mapper method: doReadBeforeUpdate ?

  The SAP error message /IWFND/CM_CONSUMER050 Inbound mapper method: doReadBeforeUpdate typically occurs in the context of SAP Gateway and OData services. This error is related to issues that arise during the processing of an OData request, particularly when trying to read data before an update operation.
  Cause:
  
  
  Data Retrieval Issues: The error may occur if the system is unable to retrieve the necessary data before performing an update. This could be due to:
  
  The requested entity does not exist.
  The entity is locked or in a state that prevents reading.
  Incorrect or missing keys in the request.
  
  
  
  Authorization Issues: The user may not have the necessary authorizations to read the data before updating it.
  
  
  Service Configuration: There may be issues with the OData service configuration, such as incorrect mappings or missing implementations for the required methods.
  
  
  Backend Logic: If there are custom implementations in the backend that are not handling the read operation correctly, this could lead to the error.
  
  
  Solution:
  
  
  Check Entity Existence: Ensure that the entity you are trying to update actually exists in the database. You can do this by executing a read operation for the entity.
  
  
  Review Request Parameters: Verify that the request parameters (especially keys) are correct and match the expected format.
  
  
  Authorization Check: Ensure that the user has the necessary authorizations to perform the read operation. You can check this in the SAP authorization objects.
  
  
  Service Implementation: Review the implementation of the OData service. Ensure that the doReadBeforeUpdate method is correctly implemented and that it handles the read operation properly.
  
  
  Debugging: Use transaction IWFND/ERROR_LOG to check for detailed error logs related to the OData service. This can provide more context on what went wrong.
  
  
  Check Service Activation: Ensure that the OData service is activated in the SAP Gateway. You can do this using transaction /IWFND/MAINT_SERVICE.
  
  
  Backend Logic Review: If there are custom logic or enhancements in the backend, review them to ensure they are functioning as expected.
  
  
  Related Information:
  
  
  Transaction Codes:
  
  /IWFND/MAINT_SERVICE: To maintain and activate OData services.
  /IWFND/ERROR_LOG: To view error logs related to OData services.
  
  
  
  SAP Notes: Check for any relevant SAP Notes that might address known issues with the specific version of SAP you are using.
  
  
  Documentation: Refer to the SAP Gateway documentation for more details on OData service implementation and error handling.
  
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution. If the issue persists, consider reaching out to SAP support for further assistance.