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

MD404 - Overview

• 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