How To Fix CL_SADL_GW_MDE_MSGX046 - Filter sign & is unknown

SAP Error Message - Details

• Message type: E = Error

• Message class: CL_SADL_GW_MDE_MSGX - texts for parser

• Message number: 046

• Message text: Filter sign & is unknown

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CL_SADL_GW_MDE_MSGX046 - Filter sign & is unknown ?

  The SAP error message CL_SADL_GW_MDE_MSGX046 with the description "Filter sign & is unknown" typically occurs in the context of using the SAP Gateway and the SADL (SAP ABAP Programming Model for SAP Fiori) framework. This error indicates that there is an issue with the filter criteria being used in a query, specifically that the filter sign (e.g., '=', '>', '<', etc.) is not recognized or is invalid.
  Cause:
  
  Invalid Filter Sign: The filter sign specified in the query is not one of the expected values. This could be due to a typo or an unsupported operator.
  Incorrect Query Structure: The structure of the query may not conform to the expected format, leading to the inability to interpret the filter sign.
  Data Type Mismatch: The filter sign may be applied to a field that does not support it due to a mismatch in data types.
  Configuration Issues: There may be issues with the configuration of the OData service or the underlying data model.
  
  Solution:
  
  Check Filter Sign: Review the filter criteria in your query to ensure that the filter sign is valid. Common filter signs include '=', '>', '<', '>=', '<=', 'NE', etc.
  Correct Query Syntax: Ensure that the query is structured correctly according to the OData protocol. Validate the syntax and ensure that all required parameters are included.
  Data Type Validation: Verify that the data types of the fields being filtered are compatible with the filter signs being used.
  Review OData Service: Check the OData service definition to ensure that it supports the filter operations you are trying to use. You may need to adjust the service or the underlying data model.
  Debugging: If you have access to the backend, consider debugging the code to see how the filter is being processed and where it might be failing.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional context.
  Documentation: Review the SAP documentation for SADL and OData services to understand the expected filter syntax and supported operations.
  Community Forums: Look for discussions in SAP Community or other forums where similar issues may have been addressed.
  
  If the issue persists after checking these aspects, consider reaching out to your SAP support team for further assistance, providing them with the details of the query and the context in which the error occurs.