How To Fix /IWBEP/EPM_PRODUCT031 - &1 is mandatory

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/EPM_PRODUCT -

• Message number: 031

• Message text: &1 is mandatory

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/EPM_PRODUCT031 - &1 is mandatory ?

  The SAP error message /IWBEP/EPM_PRODUCT031 &1 is mandatory typically occurs in the context of SAP Gateway or OData services when a required field is not provided in the request. This error indicates that a mandatory field, which is necessary for processing the request, is missing.
  Cause:
  
  
  Missing Mandatory Field: The error is triggered when a required field in the OData service is not included in the request payload. This could be due to:
  
  A client application not sending the required data.
  A misconfiguration in the OData service definition.
  An issue in the mapping of the data model.
  
  
  
  Incorrect Data Model: If the data model has been changed (e.g., fields were added or made mandatory) but the client application has not been updated accordingly, this can lead to this error.
  
  
  Solution:
  
  
  Check the OData Service Definition:
  
  Review the metadata of the OData service to identify which fields are marked as mandatory.
  Ensure that the client application is sending all required fields in the request.
  
  
  
  Update Client Application:
  
  Modify the client application to include the mandatory fields in the request payload.
  Test the request again after making the necessary changes.
  
  
  
  Debugging:
  
  Use transaction /IWFND/ERROR_LOG in SAP to check for detailed error logs related to the OData service.
  Use transaction /IWFND/MAINT_SERVICE to check the service registration and ensure that the service is active.
  
  
  
  Check for Changes in Data Model:
  
  If there have been recent changes to the data model, ensure that all dependent applications are updated to reflect these changes.
  
  
  
  Consult Documentation:
  
  Refer to the SAP documentation for the specific OData service to understand the required fields and their constraints.
  
  
  
  Related Information:
  
  SAP Gateway: This error is often encountered in the context of SAP Gateway services, which expose business data as OData services.
  OData Protocol: Understanding the OData protocol can help in troubleshooting issues related to data exchange between client applications and SAP systems.
  SAP Notes: Check for any relevant SAP Notes that might address known issues or provide additional guidance on this error.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.