How To Fix WS053 - Quantity conversion error in net price calculation (see long text)

SAP Error Message - Details

• Message type: E = Error

• Message class: WS - Supplier Billing Document

• Message number: 053

• Message text: Quantity conversion error in net price calculation (see long text)

What causes this issue?

Quantity conversion error occurs in pricing for settlement management
document &V1& item &V2&.
The system was not able to convert the settlement document unit of
measure into the settlement document price unit. Possible causes:
The net price is too high after conversion
Conversion of units of measure is not maintained in full

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?

Check whether the units of measure and their conversion factors are
correct.
Correct the incorrect document condition manually.
To do this, carry out a new price determination for this item.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WS053 - Quantity conversion error in net price calculation (see long text) ?

  Certainly! Here's a detailed explanation for the SAP error message:
  
  SAP Error Message:
  WS053 - Quantity conversion error in net price calculation (see long text)
  
  Cause:
  This error occurs during pricing or net price calculation when there is a problem converting quantities between different units of measure (UoM). Specifically, the system tries to convert a quantity from one unit to another (e.g., from base unit to sales unit or vice versa), but the conversion factor is missing, incorrect, or inconsistent.
  Common causes include:  
  
  Missing or incorrect unit of measure conversion factors in the material master.  
  Inconsistent or zero conversion factors defined between units of measure.  
  Attempting to price a sales document where the quantity unit and pricing unit do not match and no valid conversion exists.  
  Data inconsistencies in the material master or condition records.
  
  
  Solution:
  
  
  Check Unit of Measure Conversions:
  
  Go to the material master (transaction MM03) and check the units of measure tab.  
  Verify that the conversion factors between the base unit and other units (sales unit, order unit, etc.) are correctly maintained and non-zero.
  
  
  
  Maintain or Correct Conversion Factors:
  
  If missing or incorrect, maintain the correct conversion factors in the material master (transaction MM02).  
  Ensure that the conversion factor is consistent and logical (e.g., 1 box = 10 pieces).
  
  
  
  Check Pricing Unit:
  
  Verify that the pricing unit in the condition records matches the units used in the sales document or that a valid conversion exists.  
  Use transaction VK11/VK12 to check condition records and their units.
  
  
  
  Review Sales Document:
  
  Check the sales order or billing document for unit inconsistencies.  
  Adjust the sales unit or order quantity to match the units maintained in the material master.
  
  
  
  Recalculate Pricing:
  
  After corrections, reprocess the pricing to ensure the error is resolved.
  
  
  
  
  Related Information:
  
  
  Transaction Codes:  
  
  MM03 / MM02 — Material Master Display/Change  
  VK11 / VK12 — Condition Maintenance  
  VA01 / VA02 — Sales Order Create/Change
  
  
  
  Tables:  
  
  MARM — Units of Measure for Material  
  KONV — Conditions (Pricing)
  
  
  
  Notes and Documentation:  
  
  SAP Note 123456 (example) might provide specific fixes or patches if this is a known issue.  
  Refer to SAP Help Portal for detailed unit of measure and pricing configuration.
  
  
  
  
  Summary:
  The WS053 error is caused by missing or incorrect unit of measure conversions needed for net price calculation. Correcting the unit conversions in the material master and ensuring consistency between sales and pricing units will resolve the issue.
  
  If you need help with specific steps or screenshots, feel free to ask!