How To Fix /SCMTMS/PLN_VSR_OL405 - Assignment not possible; document &1 is already assigned to a schedule

/SCMTMS/PLN_VSR_OL405 - Overview

• Message type: E = Error

• Message class: /SCMTMS/PLN_VSR_OL -

• Message number: 405

• Message text: Assignment not possible; document &1 is already assigned to a schedule

Self-Explanatory Message

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/SCMTMS/PLN_VSR_OL405 - Details

• The SAP error message /SCMTMS/PLN_VSR_OL405 Assignment not possible; document &1 is already assigned to a schedule typically occurs in the context of SAP Transportation Management (TM) when you attempt to assign a document (such as a shipment or a transportation requirement) to a schedule that is already associated with that document. This can happen in various scenarios, such as when trying to reassign a shipment or when managing transportation planning.
  
  Cause:
  
  Duplicate Assignment: The document you are trying to assign is already linked to another schedule or planning run.
  Incorrect Workflow: The process flow may not be followed correctly, leading to attempts to reassign documents that are already in use.
  Data Integrity Issues: There may be inconsistencies in the data or configuration that prevent the assignment from being processed.
  
  
  Solution:
  
  Check Existing Assignments: Verify if the document (e.g., shipment, transportation requirement) is already assigned to a different schedule. You can do this by checking the document's