How To Fix O3165 - No conversion mode maintained in Customizing

SAP Error Message - Details

• Message type: E = Error

• Message class: O3 - IS-Oil: HPM messages (goods movements, QCI, deliveries)

• Message number: 165

• Message text: No conversion mode maintained in Customizing

What causes this issue?

A conversion mode has not been maintained for this transaction, plant
and/or storage location.

How to fix this error?

Maintain a conversion mode for the plant and/or storage location and
debit/credtit posting indicator in Table OIB02. Use transaction O581 to
maintain the conversion mode.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message O3165 - No conversion mode maintained in Customizing ?

  The SAP error message O3165 ("No conversion mode maintained in Customizing") typically occurs when there is an issue with the configuration of conversion modes in the SAP system. This error is often related to the handling of data conversions, particularly when dealing with different units of measure or currency conversions.
  Cause:
  
  Missing Configuration: The primary cause of this error is that the conversion mode for a specific operation or data type has not been defined in the system's Customizing settings.
  Incorrect Settings: There may be incorrect or incomplete settings in the Customizing for the relevant application area, such as Material Management (MM), Sales and Distribution (SD), or others.
  Data Type Issues: The error can also arise if the system is trying to convert data types that are not properly defined or supported.
  
  Solution:
  To resolve the O3165 error, you can follow these steps:
  
  
  Check Customizing Settings:
  
  Go to the SAP Customizing Implementation Guide (IMG) by using transaction code SPRO.
  Navigate to the relevant area where the conversion mode should be defined. This could be under Logistics, Sales and Distribution, or Material Management, depending on your specific scenario.
  Look for settings related to "Conversion" or "Unit of Measure" and ensure that the necessary conversion modes are defined.
  
  
  
  Define Conversion Modes:
  
  If you find that the conversion mode is missing, you will need to create or maintain it. This typically involves specifying the source and target units of measure or currencies and defining how the conversion should be handled.
  
  
  
  Check for Transport Requests:
  
  If the configuration was recently transported from another system, ensure that all necessary transport requests were successfully imported and that no steps were missed.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or help files related to the specific module you are working with to ensure that you are following the correct procedures for defining conversion modes.
  
  
  
  Testing:
  
  After making the necessary changes, perform tests to ensure that the error no longer occurs and that the conversions are functioning as expected.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as OMN1 (for maintaining conversion factors) or CUNI (for unit of measure conversion).
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP Notes can provide additional insights or solutions.
  User Forums: Consider visiting SAP community forums or discussion boards where other users may have encountered and resolved similar issues.
  
  If the problem persists after following these steps, it may be beneficial to consult with your SAP Basis or functional team for further assistance.