How To Fix MD422 - &1: &2 &3 (U4)

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 422

• Message text: &1: &2 &3 (U4)

What causes this issue?

For one of the following reasons, the (non-fixed) order proposal could
not be planned on time:
On the basis of backward scheduling, the system calculated a start date
in the past. The system automatically switched to forward scheduling
and planned the order proposal in the future using the in-house
production time or the delivery time
On the basis of the planning time fence and a fixing type, the order
proposals are moved to the finish date of the planning time fence. With
this logic, order proposals must be correctly planned manually.
The date displayed is the date on which the receipt is to be available
for materials planning. This contains the goods receipt processing
time. If this is not equal to zero, the necessary goods receipt date is
also displayed for information purposes.

System Response

The exception is displayed in the MRP list and the latest
stock/requirements list, along with the rescheduling date.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MD422 - &1: &2 &3 (U4) ?

  The SAP error message MD422 typically relates to issues in the Material Requirements Planning (MRP) process, specifically concerning the availability of materials or the planning of production orders. The error message format you provided indicates that there are specific details (placeholders &1, &2, &3) that would provide more context about the error.
  Cause:
  The MD422 error can occur due to several reasons, including but not limited to:
  
  Insufficient Stock: The system may not have enough stock of the required materials to fulfill the demand.
  Incorrect MRP Parameters: The MRP settings for the material may not be configured correctly, leading to planning issues.
  Planning File Entries: There may be issues with the planning file entries that prevent the MRP run from processing correctly.
  Lead Time Issues: The lead times for procurement or production may not be set correctly, causing the system to determine that materials are not available when they actually are.
  Batch Management: If batch management is enabled, there may be issues with batch availability.
  
  Solution:
  To resolve the MD422 error, you can take the following steps:
  
  Check Stock Levels: Verify the stock levels of the materials involved. Ensure that there is enough stock available to meet the demand.
  Review MRP Parameters: Check the MRP parameters for the material in question. Ensure that they are set correctly, including lot sizing, safety stock, and lead times.
  Run MRP Again: If changes have been made, run the MRP process again to see if the error persists.
  Analyze Planning File Entries: Use transaction code MD21 to check the planning file entries and ensure they are correct.
  Check for Batch Issues: If batch management is enabled, ensure that the required batches are available and that there are no restrictions on them.
  Consult Documentation: Review SAP documentation or notes related to the specific error message for additional insights or updates.
  
  Related Information:
  
  Transaction Codes: You may find it helpful to use transaction codes such as MD04 (Stock/Requirements List) to analyze stock and requirements, and MD05 (MRP List) for detailed MRP information.
  SAP Notes: Check SAP Notes for any known issues or patches related to the MD422 error.
  MRP Configuration: Familiarize yourself with MRP configuration settings in SAP, as incorrect settings can lead to various planning issues.
  
  If the error persists after following these steps, it may be beneficial to consult with your SAP support team or refer to SAP's official support channels for further assistance.