How To Fix MD403 - &1: &2 (N1)

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 403

• Message text: &1: &2 (N1)

What causes this issue?

In the MRP list, this exception message displays that the order
proposal was newly created in the last planning run.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MD403 - &1: &2 (N1) ?

  The SAP error message MD403 typically indicates an issue related to the availability of materials in the context of Material Requirements Planning (MRP). The message format usually looks like this:
  MD403 &1: &2
  Where &1 and &2 are placeholders for specific details about the error, such as the material number and the plant or storage location.
  Cause:
  The MD403 error generally arises due to one of the following reasons:
  
  Insufficient Stock: The system cannot find enough stock of the material to meet the planned requirements.
  Incorrect MRP Parameters: The MRP settings for the material may not be configured correctly, leading to issues in planning.
  Planning File Entries: There may be issues with the planning file entries that prevent the system from processing the material correctly.
  Lead Time Issues: The lead times for procurement or production may not be set correctly, causing the system to determine that the material is not available when it actually is.
  Blockages: The material may be blocked for some reason (e.g., quality issues, stock blocked for other reasons).
  
  Solution:
  To resolve the MD403 error, you can take the following steps:
  
  Check Stock Levels: Verify the stock levels of the material in the specified plant or storage location. Ensure that there is enough stock to meet the requirements.
  Review MRP Settings: Check the MRP parameters for the material. Ensure that the MRP type, lot size, and other relevant settings are correctly configured.
  Analyze Planning File Entries: Use transaction code MD21 or MD22 to check the planning file entries for the material. Ensure that they are correctly set up and not causing issues.
  Adjust Lead Times: Review and adjust the lead times for procurement or production as necessary. Ensure that they reflect realistic timelines.
  Check for Blockages: Investigate if there are any blockages on the material that could prevent it from being used in planning. This could include quality inspection blocks or stock blocks.
  Run MRP Again: After making the necessary adjustments, run the MRP process again to see if the error persists.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MD01 (MRP Run), MD02 (Single-item, single-level planning), and MD04 (Stock/Requirements List) to analyze and manage MRP-related issues.
  SAP Notes: Check SAP Notes for any known issues or patches related to the MD403 error. SAP frequently updates its knowledge base with solutions for common problems.
  Documentation: Review SAP documentation on MRP and material planning to better understand how the system processes material requirements and availability.
  
  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 MRP and materials management.