How To Fix MD160 - *** COMMENT: Calculation of simulative initial stock

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 160

• Message text: *** COMMENT: Calculation of simulative initial stock

Self-Explanatory Message

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• What is the cause and solution for SAP error message MD160 - *** COMMENT: Calculation of simulative initial stock ?

  The SAP error message MD160, which states "Calculation of simulative initial stock," typically occurs in the context of Material Requirements Planning (MRP) when the system is trying to calculate the initial stock for a material in a planning run. This error can arise due to various reasons, and understanding the cause and finding a solution is essential for effective MRP processing.
  Causes of MD160 Error
  
  
  Missing Master Data: The material master data may be incomplete or missing essential information, such as the plant, storage location, or MRP type.
  
  
  Incorrect MRP Configuration: The MRP settings for the material or plant may not be configured correctly, leading to issues in stock calculation.
  
  
  Stock Data Issues: There may be inconsistencies or errors in the stock data, such as negative stock levels or incorrect stock quantities.
  
  
  Planning File Entries: The planning file entries for the material may not be set up correctly, which can prevent the system from calculating the initial stock.
  
  
  Simulative Planning: If the planning run is set to be simulative, it may not have the necessary data to perform the calculations.
  
  
  Solutions to MD160 Error
  
  
  Check Material Master Data:
  
  Ensure that the material master data is complete and accurate. Verify that all relevant fields, such as MRP type, lot size, and planning parameters, are filled out correctly.
  
  
  
  Review MRP Configuration:
  
  Check the MRP configuration settings for the material and plant. Ensure that the MRP type is appropriate for the material and that all necessary parameters are set.
  
  
  
  Validate Stock Data:
  
  Review the stock levels for the material. Ensure that there are no negative stock levels or discrepancies in the stock quantities. You can use transaction codes like MMBE to check stock levels.
  
  
  
  Check Planning File Entries:
  
  Use transaction code MD21 to check the planning file entries for the material. Ensure that the entries are correct and that the material is included in the planning run.
  
  
  
  Run a Non-Simulative Planning Run:
  
  If the issue persists, consider running a non-simulative MRP run to see if the error is related to the simulative nature of the planning run.
  
  
  
  Consult SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes that may address this specific error. There may be patches or updates that resolve known issues.
  
  
  
  Debugging:
  
  If you have access to technical resources, debugging the MRP process can help identify the exact point of failure and provide more insight into the error.
  
  
  
  Related Information
  
  
  Transaction Codes:
  
  MD01 - MRP Run
  MD02 - MRP Run for Single Material
  MMBE - Stock Overview
  MD21 - Planning File Entries
  
  
  
  MRP Types: Understanding different MRP types (e.g., PD, VB, etc.) and their implications on stock calculations can be beneficial.
  
  
  SAP Documentation: Refer to SAP Help documentation for detailed information on MRP processes and error handling.
  
  
  By following these steps, you should be able to identify the cause of the MD160 error and implement a solution to resolve it. If the problem persists, consider reaching out to your SAP support team for further assistance.