How To Fix KX398 - Field &1 contains invalid field & (system type) in compound

SAP Error Message - Details

• Message type: E = Error

• Message class: KX - EC-EIS/EC-BP: Data basis, data collection

• Message number: 398

• Message text: Field &1 contains invalid field & (system type) in compound

What causes this issue?

This characteristic contains a field in its compound which is not an
allowed component of an object of this system type. The characteristic
is of system type 'SAP' (delivered with the system). The field in the
compound, however, references a data element or a domain of system
type 'CUS' (user-defined) and cannot be delivered.

System Response

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

How to fix this error?

Remove the field from the compound.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message KX398 - Field &1 contains invalid field & (system type) in compound ?

  The SAP error message KX398 indicates that there is an issue with a field in a compound that is being processed. Specifically, the message states that a certain field contains an invalid entry, which is often related to the system type or the configuration of the compound.
  Cause:
  
  Invalid Field Reference: The field specified in the error message may not be valid for the context in which it is being used. This could be due to a typo, a field that has been removed or renamed, or a field that is not applicable for the specific system type.
  Configuration Issues: The configuration of the compound or the data model may not align with the expected structure. This can happen if there have been recent changes to the data model or if the compound is being used in a way that it was not designed for.
  Data Type Mismatch: The field may be expecting a certain data type or format that is not being met by the input provided.
  
  Solution:
  
  Check Field Validity: Verify that the field referenced in the error message is valid and exists in the context of the compound. Ensure that there are no typos or incorrect references.
  Review Configuration: Look into the configuration of the compound and ensure that it is set up correctly. Check if any recent changes have been made that could affect the validity of the fields.
  Data Type Verification: Ensure that the data being passed to the field matches the expected data type. If the field expects a numeric value, for example, ensure that a numeric value is being provided.
  Consult Documentation: Refer to SAP documentation or help resources for the specific compound you are working with to understand the expected fields and their configurations.
  Debugging: If you have access to debugging tools, you can trace the execution to see where the error is being triggered and gather more context about the invalid field.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to the error message KX398. SAP frequently updates their knowledge base with solutions to common problems.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed. Other users may have encountered the same error and can provide insights or solutions.
  SAP Support: If the issue persists and you are unable to resolve it, consider reaching out to SAP support for assistance. They can provide more detailed guidance based on your specific system configuration and usage.
  
  By following these steps, you should be able to identify the cause of the KX398 error and implement a solution to resolve it.