How To Fix PMRP028 - Top-level demand with ID &1 not found in simulation &2

SAP Error Message - Details

• Message type: E = Error

• Message class: PMRP - Messages for pMRP

• Message number: 028

• Message text: Top-level demand with ID &1 not found in simulation &2

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message PMRP028 - Top-level demand with ID &1 not found in simulation &2 ?

  The SAP error message PMRP028 indicates that a top-level demand with a specific ID could not be found in a given simulation. This error typically arises in the context of production planning and materials requirements planning (MRP) when the system is unable to locate the demand that is supposed to be processed in the simulation run.
  Cause:
  
  Missing Demand ID: The demand ID specified in the error message does not exist in the simulation data. This could happen if the demand was deleted or not created properly.
  Incorrect Simulation Parameters: The simulation parameters may not have been set correctly, leading to a mismatch between the demand ID and the simulation context.
  Data Consistency Issues: There may be inconsistencies in the data, such as missing entries in the database or issues with the configuration of the simulation.
  Authorization Issues: The user may not have the necessary authorizations to view or access the demand ID in the simulation.
  
  Solution:
  
  Verify Demand ID: Check if the demand ID mentioned in the error message exists in the system. You can do this by navigating to the relevant transaction or report that displays demand data.
  Check Simulation Settings: Ensure that the simulation parameters are set correctly and that the demand ID is included in the simulation context.
  Recreate Simulation: If the demand ID is missing, consider recreating the simulation or re-running the planning process to regenerate the demand data.
  Data Consistency Check: Perform a consistency check on the relevant data to ensure that all necessary entries are present and correct.
  Authorization Check: Ensure that the user has the appropriate authorizations to access the demand and simulation data.
  
  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) to analyze demand and simulation data.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions for common problems.
  Documentation: Review SAP documentation related to MRP and demand management for best practices and troubleshooting steps.
  Support: If the issue persists, consider reaching out to SAP support or your internal SAP support team for further assistance.
  
  By following these steps, you should be able to identify the root cause of the PMRP028 error and implement a solution to resolve it.