How To Fix /IWFND/CM_MGW181 - Filter by '&1' is not supported by Catalogservice for this entity set

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWFND/CM_MGW -

• Message number: 181

• Message text: Filter by '&1' is not supported by Catalogservice for this entity set

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWFND/CM_MGW181 - Filter by '&1' is not supported by Catalogservice for this entity set ?

  The SAP error message /IWFND/CM_MGW181 Filter by '&1' is not supported by Catalogservice for this entity set typically occurs in the context of SAP Gateway and OData services. This error indicates that the filter you are trying to apply to a specific entity set is not supported by the Catalog service.
  Cause:
  
  Unsupported Filter: The filter expression you are trying to use is not defined or supported for the specific entity set in the OData service.
  Entity Set Configuration: The entity set may not have been configured to allow filtering on the specified property.
  Service Metadata: The OData service metadata may not expose the property you are trying to filter on, or it may not be marked as filterable.
  Versioning Issues: There may be discrepancies between the version of the OData service you are using and the expected version that supports the filter.
  
  Solution:
  
  Check Metadata: Review the OData service metadata (usually accessible via the $metadata endpoint) to confirm which properties are available for filtering on the entity set in question.
  Modify Service Implementation: If you have access to the service implementation, you may need to modify it to support filtering on the desired property. This may involve updating the service definition or the underlying data model.
  Use Supported Filters: Adjust your query to use only those filters that are supported by the entity set as defined in the service metadata.
  Check Service Version: Ensure that you are using the correct version of the OData service that supports the required filtering capabilities.
  Consult Documentation: Refer to the SAP documentation or the specific OData service documentation for guidance on supported operations and filters.
  
  Related Information:
  
  SAP Gateway: The SAP Gateway is a technology that allows you to connect devices and applications to SAP systems via OData services.
  OData Services: OData (Open Data Protocol) is a standard protocol for building and consuming RESTful APIs. Understanding OData query options (like $filter, $select, etc.) is crucial for effective usage.
  SAP Community: If you continue to face issues, consider reaching out to the SAP Community or forums for assistance, as other users may have encountered similar problems.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.