How To Fix /SAPAPO/RSP_OM120 - Maximum number of restrictions has been exceeded (error number &1)

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/RSP_OM -

• Message number: 120

• Message text: Maximum number of restrictions has been exceeded (error number &1)

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 /SAPAPO/RSP_OM120 - Maximum number of restrictions has been exceeded (error number &1) ?

  The SAP error message /SAPAPO/RSP_OM120 Maximum number of restrictions has been exceeded (error number &1) typically occurs in the context of SAP Advanced Planning and Optimization (APO) when the number of restrictions (constraints) defined in a planning run exceeds the system's predefined limits. This can happen during the optimization process in the Supply Network Planning (SNP) or Production Planning and Detailed Scheduling (PP/DS) modules.
  Cause:
  
  Excessive Constraints: The primary cause of this error is that the number of constraints (like capacity constraints, resource constraints, etc.) defined in the planning model exceeds the maximum limit set by the system.
  Model Complexity: A complex planning model with many products, locations, and resources can lead to a high number of restrictions being generated during the optimization process.
  Configuration Settings: The system may have default settings that limit the number of constraints that can be processed.
  
  Solution:
  
  
  Review and Optimize Constraints:
  
  Analyze the constraints defined in your planning model. Identify any that may be redundant or unnecessary.
  Simplify the model by reducing the number of constraints where possible.
  
  
  
  Increase the Limit:
  
  If it is necessary to keep all constraints, consider increasing the limit for the maximum number of restrictions. This can typically be done by adjusting the configuration settings in the SAP system.
  Consult with your SAP Basis or technical team to modify the relevant parameters in the system configuration.
  
  
  
  Batch Processing:
  
  If applicable, consider breaking down the planning run into smaller batches to reduce the number of constraints processed at one time.
  
  
  
  Check for Updates:
  
  Ensure that your SAP system is up to date with the latest support packages and notes, as there may be improvements or fixes related to this issue.
  
  
  
  Consult SAP Documentation:
  
  Refer to the SAP Help Portal or relevant SAP Notes for specific guidance on handling this error and for any updates regarding limits on restrictions.
  
  
  
  Related Information:
  
  SAP Notes: Check for any SAP Notes related to this error message for additional insights or patches that may address the issue.
  Performance Monitoring: Monitor the performance of your planning runs to identify if the issue is recurring and to understand the impact of constraints on planning efficiency.
  User Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  If the problem persists after trying the above solutions, it may be beneficial to engage SAP support for further assistance.