How To Fix /SCMTMS/PLN_OPT_EXP520 - Stage cannot be used; fixed vehicles at stage are different

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCMTMS/PLN_OPT_EXP -

• Message number: 520

• Message text: Stage cannot be used; fixed vehicles at stage are different

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 /SCMTMS/PLN_OPT_EXP520 - Stage cannot be used; fixed vehicles at stage are different ?

  The SAP error message /SCMTMS/PLN_OPT_EXP520 indicates that there is an issue with the planning stage in the Transportation Management System (TMS) where fixed vehicles assigned to that stage are not consistent. This typically occurs when there are discrepancies in the vehicle assignments or configurations for the transportation planning process.
  
  Cause:
  
  Inconsistent Vehicle Assignments: The vehicles assigned to the planning stage may not match the expected configuration or may have been changed after the stage was created.
  Stage 
  Configuration Issues: The stage may have been configured incorrectly, leading to a mismatch in the expected vehicle types or attributes.
  Data Integrity Issues: There may be issues with the master data related to vehicles, such as incorrect vehicle types or statuses.
  Changes in Vehicle Availability: If the availability of vehicles has changed (e.g., vehicles are no longer available or have been reassigned), this can lead to inconsistencies.
  
  
  Solution:
  
  Check Vehicle Assignments: Review the vehicles assigned to the planning stage and