How To Fix /SAPAPO/AMON_ALERTS422 - MPE upper limit exceeded

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/AMON_ALERTS -

• Message number: 422

• Message text: MPE upper limit exceeded

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.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/AMON_ALERTS422 - MPE upper limit exceeded ?

  The SAP error message /SAPAPO/AMON_ALERTS422 MPE upper limit exceeded typically occurs in the context of SAP Advanced Planning and Optimization (APO) when the maximum processing element (MPE) limit is exceeded. This can happen during planning runs or when executing certain APO functions that require processing a large amount of data.
  Cause:
  
  Data Volume: The error is often caused by a large volume of data being processed, which exceeds the predefined limits for MPE in the system.
  Configuration Settings: The configuration settings for MPE may not be optimized for the current workload or data volume.
  System Resources: Insufficient system resources (CPU, memory) can also lead to this error, especially if the system is under heavy load.
  
  Solution:
  
  
  Increase MPE Limit:
  
  You can increase the MPE limit in the system settings. This is typically done in the SAP APO configuration settings. Consult with your SAP Basis or APO administrator to adjust the MPE settings.
  The relevant parameter is usually found in the transaction RSCUSTV10 or similar configuration transactions.
  
  
  
  Optimize Data Volume:
  
  Review the data being processed and consider filtering or reducing the volume of data if possible. This can involve adjusting selection criteria or breaking down large planning runs into smaller batches.
  
  
  
  System Performance Tuning:
  
  Ensure that the system has adequate resources (CPU, memory) to handle the workload. This may involve upgrading hardware or optimizing system performance.
  Monitor system performance during planning runs to identify bottlenecks.
  
  
  
  Check for Background Jobs:
  
  If the error occurs during background processing, check if there are other background jobs running that may be consuming resources. Staggering job schedules can help alleviate resource contention.
  
  
  
  Consult SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide additional guidance on configuration settings.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as /SAPAPO/AMON for monitoring alerts and /SAPAPO/MC62 for planning book settings.
  Documentation: Review SAP documentation on APO configuration and performance tuning for best practices.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  
  If the problem persists after trying the above solutions, it may be beneficial to engage SAP support for further assistance.