How To Fix O3450 - Quantity conversion check failed for one item; all qty lines deleted

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 450

• Message text: Quantity conversion check failed for one item; all qty lines deleted

What causes this issue?

If additional quantity data is posted utilizing function
MB_CREATE_GOODS_MOVEMENT, a check is performed for all additional q
uantities for which the indicator MANEN is initial. This check has
failed to confirm the correctness of the additional quantities. The
quantities cannot be posted and are deleted for the line item.

System Response

The system is not able to post the material document completely.

How to fix this error?

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

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 O3450 - Quantity conversion check failed for one item; all qty lines deleted ?

  The SAP error message O3450, which states "Quantity conversion check failed for one item; all qty lines deleted," typically occurs during the processing of a document that involves quantity conversions, such as in inventory management or sales order processing. This error indicates that the system encountered an issue when trying to convert quantities from one unit of measure to another.
  Causes:
  
  Unit of Measure (UoM) Configuration: The UoM settings for the material may not be correctly defined. This includes missing conversion factors or incorrect settings in the material master data.
  Inconsistent Data: There may be inconsistencies in the data related to the item, such as incorrect quantity entries or mismatched UoM in the document.
  Missing Conversion Factors: If the conversion factors between the base unit of measure and the alternative units of measure are not defined, the system cannot perform the conversion.
  Incorrect Item Master Data: The material master data may have errors or missing information that affects quantity conversion.
  
  Solutions:
  
  
  Check Material Master Data:
  
  Go to the material master (transaction code MM03) and check the unit of measure settings.
  Ensure that all necessary UoMs are defined and that conversion factors are correctly set up.
  
  
  
  Review Document Entries:
  
  Check the document (e.g., sales order, purchase order) for any incorrect quantity entries or UoM mismatches.
  Ensure that the quantities entered match the expected UoM for the material.
  
  
  
  Define Conversion Factors:
  
  If conversion factors are missing, you can define them in the material master under the "Units of Measure" view.
  
  
  
  Check for Inconsistencies:
  
  Run consistency checks on the material and document data to identify any discrepancies that may be causing the error.
  
  
  
  Consult SAP Notes:
  
  Check the SAP Support Portal for any relevant notes or patches that may address this specific error.
  
  
  
  Testing:
  
  After making changes, test the process again to ensure that the error is resolved.
  
  
  
  Related Information:
  
  Transaction Codes: MM03 (Display Material), MM02 (Change Material), ME21N (Create Purchase Order), VA01 (Create Sales Order).
  Unit of Measure Settings: Ensure that the base unit of measure is correctly defined and that all alternative units of measure have valid conversion factors.
  SAP Documentation: Refer to SAP Help documentation for detailed information on unit of measure management and material master data configuration.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP support team or a functional consultant who specializes in materials management or sales and distribution.