How To Fix MD405 - &1: &2 (N3)

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 405

• Message text: &1: &2 (N3)

What causes this issue?

In the MRP list, this exception message displays
that the order proposal was newly created in the last planning run
that the start date of teh order proposal lies in the past
This situation may occur if automatic forward scheduling in the
planning run has been switched off in Customizing for the plant in
question or if when adjusting the start date when scheduling the
routing, the start date is moved into the past.

How to fix this error?

Check whether the order proposal is to be rescheduled.
If the start date moved into the past after scheduling the routing, you
should check whether the in-house production time in the material
master record and the times in the routing are consistent.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MD405 - &1: &2 (N3) ?

  The SAP error message MD405 typically indicates an issue related to the availability of materials in the context of material requirements planning (MRP). The message format usually includes two placeholders: &1 and &2, which are replaced with specific details about the error, such as the material number and the plant.
  Cause:
  The error message MD405 can occur due to several reasons, including:
  
  Insufficient Stock: The material is not available in the required quantity in the specified plant.
  Incorrect MRP Settings: The MRP settings for the material or plant may not be configured correctly.
  Planning Parameters: The planning parameters (like lot size, safety stock, etc.) may not be set appropriately, leading to discrepancies in availability.
  Lead Time Issues: The lead time for procurement or production may not be sufficient to meet the demand.
  Data Inconsistencies: There may be inconsistencies in the master data related to the material, such as incorrect BOM (Bill of Materials) or routing.
  
  Solution:
  To resolve the MD405 error, you can take the following steps:
  
  Check Stock Levels: Verify the stock levels of the material in the specified plant using transaction codes like MMBE (Stock Overview) or MB52 (List of Warehouse Stocks on Hand).
  Review MRP Settings: Check the MRP settings for the material using transaction MM02 (Change Material) and ensure that the MRP type, lot size, and other parameters are correctly configured.
  Adjust Planning Parameters: If necessary, adjust the planning parameters such as safety stock, reorder point, and lot size to ensure that the system can generate the required procurement proposals.
  Analyze Lead Times: Review the lead times for procurement and production to ensure they are realistic and sufficient to meet demand.
  Check Master Data: Ensure that the master data for the material is complete and accurate, including BOMs, routings, and any other relevant data.
  Run MRP: After making the necessary adjustments, run the MRP again to see if the issue is resolved.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MD01 (MRP Run), MD04 (Stock/Requirements List), and MD02 (MRP for Single Item).
  SAP Notes: Check for any SAP Notes related to MD405 for additional insights or patches that may address specific issues.
  Documentation: Review SAP documentation or help files for more detailed explanations of MRP processes and error handling.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP support team or refer to SAP community forums for further assistance.