How To Fix RSODP_ODATA054 - Only single value (parameter) or list of single values supported.

SAP Error Message - Details

• Message type: E = Error

• Message class: RSODP_ODATA -

• Message number: 054

• Message text: Only single value (parameter) or list of single values supported.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSODP_ODATA054 - Only single value (parameter) or list of single values supported. ?

  The SAP error message RSODP_ODATA054 indicates that there is an issue with the parameters being passed to an OData service. Specifically, it means that the OData service is expecting either a single value or a list of single values for a parameter, but the input provided does not meet this requirement.
  Cause:
  
  
  Incorrect Parameter Format: The parameter being sent to the OData service may be formatted incorrectly. For example, if the service expects a single value (like a string or a number) or a list of single values (like an array of strings or numbers), but receives a different format (like a complex object or a nested structure), this error will occur.
  
  
  Multiple Values Passed: If the OData service is designed to accept only a single value or a list of single values, and you are trying to pass a complex object or multiple complex objects, this will trigger the error.
  
  
  Data Type Mismatch: The data type of the parameter being sent may not match the expected data type defined in the OData service.
  
  
  Solution:
  
  
  Check Parameter Definition: Review the OData service documentation to understand the expected format for the parameters. Ensure that you are sending the correct type and format.
  
  
  Modify the Request: If you are sending a request with multiple values, ensure that you are sending them as a list of single values. For example, if the service expects a list of IDs, ensure you are sending them as an array of strings or numbers.
  
  
  Use Correct Data Types: Ensure that the data types of the parameters match what the OData service expects. If it expects a string, make sure you are not sending a number or an object.
  
  
  Debugging: If you have access to the backend or logs, check for any additional error messages or logs that might provide more context on what is being sent and what is expected.
  
  
  Testing: Use tools like Postman or SAP Gateway Client to test the OData service with different parameter values to see what works and what does not.
  
  
  Related Information:
  
  OData Service Documentation: Always refer to the official documentation for the specific OData service you are working with to understand the expected input formats.
  SAP Community: The SAP Community forums can be a valuable resource for finding similar issues and solutions shared by other users.
  SAP Notes: Check for any relevant SAP Notes that might address known issues or provide additional guidance on handling OData services.
  
  By following these steps, you should be able to resolve the RSODP_ODATA054 error and successfully interact with the OData service.