How To Fix /IWBEP/CM_V4_COS106 - OpenSQL where clause not supported for this filter expression

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/CM_V4_COS -

• Message number: 106

• Message text: OpenSQL where clause not supported for this filter expression

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWBEP/CM_V4_COS106 - OpenSQL where clause not supported for this filter expression ?

  The SAP error message /IWBEP/CM_V4_COS106 indicates that there is an issue with the OpenSQL WHERE clause in the context of an OData service. This error typically arises when the filter expression used in the OData query is not supported by the underlying OpenSQL implementation.
  Cause:
  The error can occur due to several reasons:
  
  Unsupported Filter Expressions: The filter expression used in the OData query may contain operations or functions that are not supported in OpenSQL. For example, certain complex expressions, subqueries, or unsupported functions may lead to this error.
  Data Type Mismatch: If the data types in the filter expression do not match the expected types in the database, it can cause this error.
  Incorrect Syntax: There may be a syntax error in the OData query that leads to an invalid WHERE clause being generated.
  Limitations of the OData Service: The OData service may have limitations on the types of filters that can be applied based on the underlying data model.
  
  Solution:
  To resolve the error, consider the following steps:
  
  Review the Filter Expression: Check the filter expression in the OData query for any unsupported operations or functions. Simplify the expression if necessary.
  Check Data Types: Ensure that the data types used in the filter expression match the expected types in the database. If there is a mismatch, adjust the query accordingly.
  Debug the OData Service: Use transaction /IWFND/ERROR_LOG to check for any additional error messages or logs that can provide more context about the issue.
  Test with Simple Queries: Start with a simple filter expression and gradually add complexity to identify which part of the expression is causing the issue.
  Consult Documentation: Refer to the SAP documentation for the specific version of the OData service you are using to understand the supported filter expressions and limitations.
  Update the OData Model: If the issue is related to the OData model, consider updating the model to ensure it supports the required filter expressions.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide guidance on supported filter expressions.
  OData Documentation: Review the OData documentation for the specific version you are using to understand the capabilities and limitations of the service.
  Community Forums: Engage with the SAP Community or forums where other developers may have encountered similar issues and can provide insights or solutions.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.