How To Fix SPXN198 - Property is defined by external schema

SAP Error Message - Details

• Message type: E = Error

• Message class: SPXN - Proxy Generation

• Message number: 198

• Message text: Property is defined by external schema

What causes this issue?

The object you are editing is not modeled in the backend, but defined
either by an external schema/wsdl description or modeled in the ESR. See
also
<DS:DE.PRXGENAPPL>Generating Application</>

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

System Response

Properties of this object that are part of the external model may not be
changed in the backend.

How to fix this error?

Change the property in the external modeling tool and regenerate the
object.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message SPXN198 - Property is defined by external schema ?

  The SAP error message SPXN198, which states "Property is defined by external schema," typically occurs in the context of SAP's Business Workflow or when dealing with external data sources in SAP systems. This error indicates that a property or attribute you are trying to access or manipulate is defined in an external schema, which means it is not directly managed within the SAP system but rather linked to an external data source or service.
  Cause:
  
  External Schema Reference: The property you are trying to access is defined in an external schema, which could be a database, a web service, or another external system.
  Configuration Issues: There may be configuration issues in the way the external schema is integrated with your SAP system.
  Data Model Mismatch: The data model in your SAP system may not align with the external schema, leading to discrepancies in property definitions.
  Access Rights: You may not have the necessary permissions to access the external schema or the specific property.
  
  Solution:
  
  Check External Schema Configuration: Verify the configuration settings for the external schema in your SAP system. Ensure that the schema is correctly defined and accessible.
  Review Property Definitions: Look at the property definitions in the external schema and ensure they match what you are trying to access in SAP.
  Access Rights: Ensure that you have the necessary permissions to access the external schema and the specific properties you are trying to work with.
  Consult Documentation: Refer to the SAP documentation related to external schemas and workflows to understand how to properly configure and access properties defined externally.
  Debugging: If you have access to debugging tools, you can trace the workflow or process to identify where the error is occurring and gather more context about the issue.
  Contact Support: If the issue persists, consider reaching out to SAP support or your internal IT team for assistance, especially if this is a production environment.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  Integration Documentation: Review the integration documentation for the specific external system you are working with to ensure compatibility and correct configuration.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to diagnose and resolve the SPXN198 error in your SAP environment.