How To Fix /IWBEP/CM_MGW_RT228 - Converting the filter tree via a RANGE failed for property '&1'

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/CM_MGW_RT -

• Message number: 228

• Message text: Converting the filter tree via a RANGE failed for property '&1'

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWBEP/CM_MGW_RT228 - Converting the filter tree via a RANGE failed for property '&1' ?

  The SAP error message /IWBEP/CM_MGW_RT228 indicates that there was an issue converting a filter tree for a property in an OData service. This typically occurs when the system is unable to interpret the filter criteria provided in the OData request, often due to data type mismatches or unsupported operations.
  Cause:
  
  Data Type Mismatch: The property specified in the filter may have a different data type than what is being sent in the request. For example, if the property is of type Integer and the request sends a string, this error can occur.
  Unsupported Filter Operations: The filter operation being used may not be supported for the specified property. For instance, using certain functions or operators that are not applicable to the data type.
  Incorrect Property Name: The property name specified in the filter might be incorrect or does not exist in the entity type.
  Complex Filters: If the filter tree is too complex or contains nested filters that are not properly structured, it can lead to conversion failures.
  
  Solution:
  
  Check Data Types: Ensure that the data types of the properties in the OData service match the types being sent in the request. Adjust the request to match the expected data types.
  Validate Filter Syntax: Review the filter syntax and ensure that it adheres to the OData standards. Make sure that the operations used are valid for the property type.
  Verify Property Names: Double-check the property names in the filter against the metadata of the OData service to ensure they are correct and exist in the entity.
  Simplify Filters: If using complex filters, try simplifying them to see if the error persists. This can help identify if a specific part of the filter is causing the issue.
  Debugging: Use transaction codes like /IWFND/ERROR_LOG to check for more detailed error logs that can provide additional context on the failure.
  
  Related Information:
  
  OData Documentation: Familiarize yourself with the OData protocol and its filtering capabilities. SAP provides documentation on how to construct OData queries.
  SAP Notes: Check for any relevant SAP Notes that might address known issues or provide patches related to this error.
  Community Forums: Engage with SAP community forums or support channels where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to identify the root cause of the error and implement a suitable solution.