How To Fix /SAPAPO/MAT155 - Planning with too many characteristics could greatly increase runtime

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/MAT -

• Message number: 155

• Message text: Planning with too many characteristics could greatly increase runtime

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/MAT155 - Planning with too many characteristics could greatly increase runtime ?

  The SAP error message /SAPAPO/MAT155 indicates that the planning process in SAP Advanced Planning and Optimization (APO) is encountering performance issues due to the use of too many characteristics in the planning model. This can lead to significantly increased runtime for planning operations, which can affect overall system performance and user experience.
  Cause:
  
  Excessive Characteristics: The planning model may have too many characteristics defined, which can lead to a combinatorial explosion in the number of possible combinations that need to be processed during planning.
  Complexity of Data: The complexity and volume of data associated with the characteristics can also contribute to longer processing times.
  Inefficient Planning Models: The design of the planning model may not be optimized for performance, leading to inefficiencies in how data is processed.
  
  Solution:
  
  Reduce the Number of Characteristics: Review the planning model and consider reducing the number of characteristics used. Focus on the most critical characteristics that impact planning decisions.
  Optimize Characteristic Combinations: Analyze the combinations of characteristics and eliminate any that are not necessary for the planning process.
  Use Aggregation: If applicable, consider using aggregated data or hierarchies to reduce the complexity of the planning model.
  Performance Tuning: Work with your SAP Basis team to tune the system performance. This may include adjusting system parameters, optimizing database performance, or increasing hardware resources.
  Review Planning Strategies: Evaluate the planning strategies being used and consider whether a different approach could yield better performance.
  Testing and Monitoring: After making changes, monitor the performance of the planning runs to ensure that the changes have had the desired effect.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional guidance or patches related to this error message.
  Documentation: Review SAP documentation on planning models and characteristics to better understand best practices for configuration.
  Community Forums: Engage with the SAP community forums or user groups to see if others have encountered similar issues and what solutions they have implemented.
  Performance Analysis Tools: Utilize SAP's performance analysis tools (like ST05, ST12, or transaction codes related to performance monitoring) to identify bottlenecks in the planning process.
  
  By addressing the root causes of the error and implementing the suggested solutions, you can improve the performance of your planning processes in SAP APO.