How To Fix EIT_GW_COMMON020 - Edm type &1 is invalid.

SAP Error Message - Details

• Message type: E = Error

• Message class: EIT_GW_COMMON - Extensibility Template: Common Messages

• Message number: 020

• Message text: Edm type &1 is invalid.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message EIT_GW_COMMON020 - Edm type &1 is invalid. ?

  The SAP error message EIT_GW_COMMON020 with the description "Edm type &1 is invalid" typically occurs in the context of SAP Gateway services, particularly when there is an issue with the data types being used in the OData service. This error indicates that the system has encountered an invalid or unsupported EDM (Entity Data Model) type.
  Causes:
  
  Invalid Data Type Mapping: The data type defined in the OData service does not match any of the supported EDM types. This can happen if there is a mismatch between the data types in the backend system and those expected by the OData service.
  Incorrect Metadata: The metadata document generated for the OData service may contain errors or may not be properly defined, leading to invalid type references.
  Changes in Data Model: If there have been recent changes to the underlying data model (e.g., changes in the database table structure or data types) without updating the OData service, this error may occur.
  Unsupported Data Types: Certain data types in the backend (like complex types or specific database types) may not be supported in the OData service.
  
  Solutions:
  
  Check Data Type Definitions: Review the data types defined in the OData service and ensure they are valid and supported by the SAP Gateway. Compare them with the backend data types.
  Update Metadata: Regenerate the metadata for the OData service. This can be done using transaction code /IWFND/MAINT_SERVICE to maintain the service and refresh the metadata.
  Adjust Data Model: If there have been changes to the underlying data model, ensure that the OData service is updated accordingly. This may involve modifying the service implementation or the data type mappings.
  Debugging: Use transaction code /IWFND/ERROR_LOG to check for additional error details that may provide more context on the issue.
  Consult Documentation: Refer to SAP documentation for the specific version you are using to understand the supported EDM types and any limitations.
  
  Related Information:
  
  SAP Gateway: SAP Gateway is a technology that allows you to connect devices, environments, and platforms to SAP systems. It uses OData services to expose data and functionality.
  OData Services: OData (Open Data Protocol) is a standard protocol for building and consuming RESTful APIs. It defines a set of best practices for building and consuming APIs.
  EDM Types: The Entity Data Model (EDM) defines the data types and relationships in an OData service. Common EDM types include String, Int32, Boolean, DateTime, etc.
  
  If the issue persists after trying the above solutions, consider reaching out to SAP support or consulting with a technical expert familiar with SAP Gateway and OData services.