/SCMTMS/PLN_FUB121 - Hard constraint "&1" violated

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCMTMS/PLN_FUB -

• Message number: 121

• Message text: Hard constraint "&1" violated

Self-Explanatory Message

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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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AnswerBot

• What is the cause and solution for SAP error message /SCMTMS/PLN_FUB121 - Hard constraint "&1" violated ?

  The SAP error message /SCMTMS/PLN_FUB121 Hard constraint "&1" violated typically occurs in the context of SAP Transportation Management (TM) when a planning operation (like transportation planning or optimization) encounters a hard constraint that cannot be satisfied. Hard constraints are rules or conditions that must be met for the planning to be valid, such as vehicle capacity, delivery dates, or specific route restrictions.
  Cause:
  
  Capacity Issues: The vehicle or resource may not have enough capacity to accommodate the planned load.
  Time Constraints: The planned delivery or pickup times may not align with the available time windows for the resources.
  Route Restrictions: There may be restrictions on certain routes that prevent the planned transportation from being executed.
  Resource Availability: The required resources (vehicles, drivers, etc.) may not be available at the time of planning.
  Configuration Issues: Incorrect configuration of transportation lanes, routes, or other planning parameters in SAP TM.
  
  Solution:
  
  Review Constraints: Check the specific hard constraint that is being violated (indicated by "&1" in the error message). This will provide insight into what specific rule is causing the issue.
  Adjust Planning Parameters: Modify the planning parameters to ensure that they align with the available resources and constraints. This may involve:
  
  Increasing vehicle capacity.
  Adjusting time windows for pickups and deliveries.
  Ensuring that routes are valid and do not have restrictions.
  
  
  Resource Allocation: Ensure that the necessary resources are available for the planned transportation. This may involve scheduling additional vehicles or drivers.
  Reconfigure Settings: If the issue is due to configuration, review and adjust the settings in the SAP TM configuration to ensure they are set up correctly.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance on the hard constraint being violated.
  
  Related Information:
  
  Transaction Codes: You may want to use transaction codes like /SCMTMS/PLN for planning or /SCMTMS/OPT for optimization to analyze the planning process.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  Community Forums: Engage with SAP community forums or support channels for additional insights and solutions from other users who may have encountered similar issues.
  
  If the problem persists after trying the above solutions, it may be beneficial to involve your SAP support team or consult with an SAP expert who specializes in Transportation Management.