How To Fix OQ_H150 - Field Conversion Tool: Illegal call mode &1

SAP Error Message - Details

• Message type: E = Error

• Message class: OQ_H - IS-Oil SSR : Message pool Interfaces/IAC/BAPI development

• Message number: 150

• Message text: Field Conversion Tool: Illegal call mode &1

What causes this issue?

The SSR Field conversion Tool has been called with Mode &V1&.
This however is not a supported value.
The mode must be either 'I' (Inbound processing) or 'O' (Outbound
processing).

System Response

The system cannot perform the field conversions.

How to fix this error?

If the field conversion tool is called from a business add-in (Exit)
please correct your coding.
If not please contact your system administrator.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message OQ_H150 - Field Conversion Tool: Illegal call mode &1 ?

  The SAP error message OQ_H150, which states "Field Conversion Tool: Illegal call mode &1," typically occurs in the context of data conversion or field mapping processes within SAP systems. This error indicates that the system is trying to execute a function or process in a mode that is not allowed or recognized.
  Cause:
  
  Incorrect Call Mode: The error is often caused by an incorrect or unsupported call mode being passed to the field conversion tool. This could happen due to a misconfiguration in the data conversion settings or an error in the program logic that invokes the conversion tool.
  Data Mapping Issues: If the data being processed does not conform to the expected format or structure, it may lead to an illegal call mode.
  Custom Development: If there are custom programs or enhancements that interact with the field conversion tool, they may not be handling the call modes correctly.
  
  Solution:
  
  Check Call Mode: Review the code or configuration that is invoking the field conversion tool. Ensure that the call mode being used is valid and supported by the tool.
  Review Data Mapping: Verify that the data being passed to the conversion tool is correctly formatted and adheres to the expected structure. This may involve checking the source data and ensuring it matches the target format.
  Debugging: If you have access to the development environment, use debugging tools to trace the execution flow and identify where the illegal call mode is being set or passed.
  Consult Documentation: Refer to SAP documentation or notes related to the field conversion tool for any specific requirements or limitations regarding call modes.
  SAP Support: If the issue persists, consider reaching out to SAP support for assistance. They may provide insights or patches if this is a known issue.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide guidance on the field conversion tool.
  Transaction Codes: Familiarize yourself with transaction codes related to data conversion and field mapping, such as LSMW (Legacy System Migration Workbench) or others that may be relevant to your specific scenario.
  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 OQ_H150 error in your SAP environment.