How To Fix ISU_UMC_ODATA081 - Mandatory field is missing

SAP Error Message - Details

• Message type: E = Error

• Message class: ISU_UMC_ODATA - Message class for the Multichannel oData services

• Message number: 081

• Message text: Mandatory field is missing

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 ISU_UMC_ODATA081 - Mandatory field is missing ?

  The SAP error message ISU_UMC_ODATA081: Mandatory field is missing typically occurs in the context of SAP IS-U (Utilities) when working with OData services. This error indicates that a required field in the OData request is not being provided, which prevents the operation from being completed successfully.
  Cause:
  
  Missing Mandatory Fields: The most common cause is that the OData request is missing one or more mandatory fields that are required by the service. This could be due to incorrect mapping, missing data in the request payload, or a misunderstanding of the required fields for the specific operation.
  Incorrect Data Format: Sometimes, even if all mandatory fields are present, if the data format does not match the expected format (e.g., date formats, numeric formats), it can lead to this error.
  Service Configuration Issues: There may be issues with the configuration of the OData service itself, such as incorrect definitions of mandatory fields in the service metadata.
  
  Solution:
  
  Check the OData Service Documentation: Review the documentation for the specific OData service you are using to identify all mandatory fields required for the operation you are trying to perform.
  Validate Request Payload: Ensure that your request payload includes all mandatory fields. Use tools like Postman or SAP Gateway Client to test your OData requests and verify that all required fields are included.
  Review Service Metadata: Access the service metadata (usually available at the service URL with $metadata appended) to check the definitions of the entity types and their required fields.
  Error Logging: Check the SAP application logs (transaction SLG1) for more detailed error messages that might provide additional context about which specific field is missing.
  Debugging: If you have access to the backend, you can debug the OData service implementation to see where the error is being triggered and which field is causing the issue.
  Consult with SAP Support: If you are unable to resolve the issue, consider reaching out to SAP support for assistance, especially if you suspect a configuration issue.
  
  Related Information:
  
  OData Protocol: Understanding the OData protocol and how it works with SAP can help in troubleshooting issues related to data exchange.
  SAP IS-U Documentation: Familiarize yourself with the specific modules and functionalities of SAP IS-U, as this will provide context for the mandatory fields in your requests.
  SAP Community: Engaging with the SAP Community forums can provide insights 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 ISU_UMC_ODATA081 error.