How To Fix MD491 - &1 for material &2: &3 days' supply is less than limiting value of &4

SAP Error Message - Details

• Message type: E = Error

• Message class: MD - Material Requirements Planning (MRP)

• Message number: 491

• Message text: &1 for material &2: &3 days' supply is less than limiting value of &4

What causes this issue?

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?

Procedure for System Administrators

You can define user-specific settings for traffic lights in the menu
function <LS>Define traffic lights</>.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MD491 - &1 for material &2: &3 days' supply is less than limiting value of &4 ?

  The SAP error message MD491 indicates that the days' supply for a specific material is less than a defined limiting value. This message typically arises in the context of Material Requirements Planning (MRP) when the system calculates the availability of materials and finds that the projected supply is insufficient to meet the demand.
  Cause:
  The error message MD491 is triggered when:
  
  The projected stock of a material is insufficient to cover the demand for a specified number of days.
  The days' supply calculated for the material is less than the limiting value set in the system.
  This can occur due to various reasons, such as:
  
  Low stock levels.
  High demand or unexpected increases in consumption.
  Delays in procurement or production.
  Incorrect planning parameters or settings in the MRP configuration.
  
  
  
  Solution:
  To resolve the MD491 error, consider the following steps:
  
  
  Check Stock Levels: Verify the current stock levels of the material in question. Ensure that the stock is sufficient to meet the demand.
  
  
  Review Demand and Supply: Analyze the demand forecast and any open purchase orders or production orders. Ensure that the demand is accurately reflected in the system.
  
  
  Adjust MRP Parameters: Review the MRP settings for the material. Check the following:
  
  Safety stock levels.
  Reorder point settings.
  Lot size settings.
  Lead times for procurement and production.
  
  
  
  Increase Supply: If necessary, increase the supply by:
  
  Placing additional purchase orders.
  Adjusting production schedules to increase output.
  Reviewing and possibly increasing safety stock levels.
  
  
  
  Run MRP: After making adjustments, run the MRP process again to recalculate the availability of materials and ensure that the supply meets the demand.
  
  
  Consult Documentation: If the issue persists, consult SAP documentation or your organization's SAP support team for further troubleshooting.
  
  
  Related Information:
  
  MRP Configuration: Understanding how MRP works in SAP and the various parameters that can affect material availability is crucial.
  Material Master Data: Ensure that the material master data is correctly maintained, including lead times, safety stock, and other relevant fields.
  Reporting Tools: Utilize SAP reporting tools to analyze stock levels, demand forecasts, and supply chain performance to identify potential issues before they trigger errors.
  
  By following these steps, you should be able to address the MD491 error and ensure that your material planning is effective and efficient.