How To Fix MD501 - &1: Not covered by master production schedule at component level (S8)

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 501

• Message text: &1: Not covered by master production schedule at component level (S8)

What causes this issue?

After an ATP check, the system has determined that the requirements for
the components are not covered by the master production schedule.

System Response

This exception message appears in the MRP list for a planning run in
the main memory.

How to fix this error?

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MD501 - &1: Not covered by master production schedule at component level (S8) ?

  The SAP error message MD501 indicates that a specific component is not covered by the master production schedule (MPS) at the component level. This typically occurs in the context of production planning and scheduling when the system cannot find a valid production plan for a particular component required for a finished product.
  Cause:
  
  MPS Configuration Issues: The master production schedule may not be properly configured to include the component in question.
  Demand and Supply Mismatch: There may be a mismatch between the demand for the finished product and the supply of the components.
  Planning Parameters: Incorrect planning parameters or settings in the material master data can lead to this error.
  Component Not Included in MPS: The specific component may not be included in the MPS, meaning it is not planned for production.
  Lot Size Issues: The lot size settings for the component may not align with the MPS, leading to discrepancies.
  Time Period Issues: The planning horizon may not cover the time period for which the component is needed.
  
  Solution:
  
  Check MPS Settings: Review the MPS settings to ensure that the component is included in the planning. You may need to adjust the MPS to cover the required components.
  Review Demand and Supply: Analyze the demand for the finished product and ensure that there is sufficient supply of the components. Adjust forecasts or production plans as necessary.
  Material Master Data: Verify the material master data for the component. Ensure that the planning parameters (like MRP type, lot size, etc.) are correctly set.
  Adjust Planning Parameters: If necessary, adjust the planning parameters for the component to ensure it aligns with the MPS.
  Check Planning Horizon: Ensure that the planning horizon is set correctly and covers the required time frame for production.
  Run MRP: After making the necessary adjustments, run the Material Requirements Planning (MRP) process again to generate the necessary production orders and ensure that the component is covered.
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like MD04 (Stock/Requirements List) to analyze the stock and requirements for the component.
  MRP Types: Familiarize yourself with different MRP types (e.g., PD for MRP, VB for consumption-based planning) and how they affect planning.
  Planning Strategies: Understand the planning strategies used in your organization, as they can impact how components are planned and covered.
  Documentation: Refer to SAP documentation or help files for more detailed information on MPS and MRP processes.
  
  By addressing the underlying causes and implementing the suggested solutions, you should be able to resolve the MD501 error and ensure that your components are properly covered by the master production schedule.