How To Fix /SCMTMS/PLN_FUB121 - Hard constraint "&1" violated

/SCMTMS/PLN_FUB121 - Overview

• 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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/SCMTMS/PLN_FUB121 - Details

• 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