How To Fix MD436 - &1: &2 (W2)

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 436

• Message text: &1: &2 (W2)

What causes this issue?

The purchase order item displayed or the item for the schedule line
displayed is blocked. No goods can be received for this item.

System Response

The system displays this exception in the MRP list or the
stock/requirements list.

How to fix this error?

Check whether the item can be unblocked.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MD436 - &1: &2 (W2) ?

  The SAP error message MD436 typically relates to issues in the Material Requirements Planning (MRP) process, specifically concerning the availability of materials or the planning of production orders. The message format you provided indicates that it is a warning (W2) and includes placeholders for specific details.
  Cause:
  The error message MD436 usually indicates that there is a problem with the planning of materials or production orders. Common causes include:
  
  Insufficient Stock: The system has determined that there is not enough stock available to meet the demand for a particular material.
  Incorrect MRP Parameters: The settings for MRP might not be configured correctly, leading to planning issues.
  Lead Time Issues: The lead times for procurement or production might not be set correctly, causing delays in availability.
  Demand and Supply Mismatch: There may be a mismatch between the demand (sales orders, forecasts) and the supply (production orders, stock).
  Master Data Issues: Problems with material master data, such as incorrect planning views or missing information.
  
  Solution:
  To resolve the MD436 error, you can take the following steps:
  
  Check Stock Levels: Verify the stock levels of the material in question to ensure that there is enough available to meet the demand.
  Review MRP Parameters: Check the MRP settings for the material, including lot size, safety stock, and lead times. Make adjustments as necessary.
  Analyze Demand and Supply: Use transaction codes like MD04 (Stock/Requirements List) to analyze the demand and supply situation for the material. Look for any discrepancies.
  Adjust Planning Data: If necessary, adjust the planning data in the material master or the production planning settings.
  Run MRP Again: After making the necessary adjustments, run the MRP process again to see if the issue is resolved.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance related to your version of SAP.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MD04 (Stock/Requirements List), MD01 (MRP Run), and MD02 (Single-item, Multi-level Planning).
  SAP Notes: Check for any SAP Notes related to MD436 for additional insights or patches that may address known issues.
  User Forums: Engage with SAP community forums or user groups for shared experiences and solutions from other users who may have encountered the same error.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP support team or a technical consultant for further investigation.