How To Fix ML4HRUN051 - Periodic unit price of the material will be negative

SAP Error Message - Details

• Message type: E = Error

• Message class: ML4HRUN - Messages for New Actual Costing

• Message number: 051

• Message text: Periodic unit price of the material will be negative

What causes this issue?

You want to perform the settlement for the material.
Differences were collected in the period to be settled and, upon
recalculation, a statistical periodic unit price has been calculated
with a negative price.

System Response

The system will not accept a negative periodic unit price.

How to fix this error?

1. Check the values for the relevant period for all currencies and
valuations in the material ledger data.
2. Check all documents for this material in the appropriate period.
Perhaps it will be necessary to reverse some
important postings in the past (i.e. incorrectly valuated goods
receipts or price changes at an incorrect price).
3. Investigate the possibility of posting a debit/credit for the
material in the appropriate period.
4. If this message appears for a produced material check whether all
relevant production orders are settled

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 ML4HRUN051 - Periodic unit price of the material will be negative ?

  The SAP error message ML4HRUN051 indicates that there is an issue with the periodic unit price of a material, which is being calculated as negative. This typically occurs in the context of Material Ledger (ML) and can be related to various factors in the configuration or data of the material.
  Causes:
  
  Incorrect Material Master Data: The material master data may have incorrect settings, such as negative stock or incorrect valuation class.
  Negative Stock: If there are negative stock levels for the material, it can lead to negative periodic unit prices.
  Incorrect Price Determination: The price determination settings may not be configured correctly, leading to incorrect calculations.
  Inventory Adjustments: Manual adjustments or inventory corrections that result in negative values can trigger this error.
  Currency Issues: If there are currency conversion issues or incorrect exchange rates, it may affect the pricing calculations.
  
  Solutions:
  
  Check Material Master Data: Review the material master data for the affected material. Ensure that all relevant fields are correctly filled out, especially those related to valuation and pricing.
  Review Stock Levels: Check the stock levels for the material. If there are negative stocks, investigate the cause and correct it. You may need to perform a stock adjustment.
  Price Determination Configuration: Verify the configuration settings for price determination in the Material Ledger. Ensure that the settings align with your business processes.
  Inventory Reconciliation: Perform a reconciliation of inventory to ensure that all transactions are correctly recorded and that there are no discrepancies.
  Check for Manual Adjustments: Review any manual adjustments made to the material's inventory or pricing. Ensure that these adjustments are valid and do not lead to negative values.
  Consult SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance.
  
  Related Information:
  
  Material Ledger: The Material Ledger is a tool in SAP that allows for the management of inventory valuation and provides detailed insights into material costs.
  Periodic Unit Price: This is the average price of a material over a specific period, which is used for inventory valuation.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MM03 (Display Material), MB52 (List Warehouse Stocks on Hand), and CKM3N (Material Price Analysis) to help diagnose the issue.
  
  If the problem persists after checking these areas, it may be beneficial to consult with your SAP support team or a consultant who specializes in Material Ledger issues.