How To Fix MD404 - &1: &2 (N2)

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 404

• Message text: &1: &2 (N2)

What causes this issue?

In the MRP list, this exception message displays:
that the planned order was newly created in the last planning run
that the opening date of the planned order lies in the past

How to fix this error?

The opening period is a time buffer that is planned to provide the
MRP controller with the time necessary for converting planned orders
or purchase requisition.
If the planned order can be converted (to a purchase requisition or
to a production order), it should be converted as quickly as possible.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MD404 - &1: &2 (N2) ?

  The SAP error message MD404 typically indicates that there is a problem with the availability check for a material in the context of a planning run or a related process. The message format usually includes placeholders for specific details, such as the material number and the plant.
  Cause:
  The error message MD404 can occur due to several reasons, including:
  
  Material Not Found: The material specified in the message may not exist in the system or may not be available in the specified plant.
  Master Data Issues: There may be issues with the material master data, such as missing or incorrect data in the MRP (Material Requirements Planning) views.
  Stock Availability: The system may not find sufficient stock for the material in the specified plant, or the stock may be blocked or reserved for other purposes.
  MRP Settings: Incorrect MRP settings or parameters for the material or plant can lead to this error.
  Planning File Entries: Missing or incorrect planning file entries can also trigger this error during the planning run.
  
  Solution:
  To resolve the MD404 error, you can take the following steps:
  
  Check Material Existence: Verify that the material number mentioned in the error message exists in the system and is correctly set up in the specified plant.
  Review Material Master Data: Go to the material master (transaction code MM03) and check the MRP views for completeness and correctness. Ensure that the necessary data, such as MRP type, lot size, and procurement type, is correctly maintained.
  Check Stock Levels: Use transaction code MMBE to check the stock levels for the material in the specified plant. Ensure that there is available stock and that it is not blocked or reserved.
  MRP Configuration: Review the MRP configuration settings for the material and plant. Ensure that the MRP parameters are set correctly.
  Planning File Entries: Check the planning file entries using transaction code MD21 or MD22 to ensure that the entries are correct and up to date.
  Run MRP Again: After making the necessary corrections, run the MRP again to see if the error persists.
  
  Related Information:
  
  Transaction Codes: 
  
  MM03: Display Material Master
  MMBE: Stock Overview
  MD21: Display Planning File Entries
  MD22: Change Planning File Entries
  MD01: MRP Run
  
  
  SAP Notes: Check SAP Notes related to MD404 for any specific patches or updates that may address known issues.
  Documentation: Refer to SAP Help documentation for MRP and material master data management for more detailed guidance.
  
  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 additional insights.