How To Fix /SCMTMS/GNT_PLN021 - Scheduling not possible; no documents assigned to selected resources

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCMTMS/GNT_PLN -

• Message number: 021

• Message text: Scheduling not possible; no documents assigned to selected resources

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/GNT_PLN021 - Scheduling not possible; no documents assigned to selected resources ?

  The SAP error message /SCMTMS/GNT_PLN021 indicates that scheduling is not possible because there are no documents assigned to the selected resources in the Transportation Management (TM) module. This error typically arises when trying to schedule transportation activities, such as shipments or freight orders, but the system cannot find any relevant documents linked to the resources you are trying to use.
  Causes:
  
  No Documents Assigned: The selected resources (e.g., vehicles, carriers) do not have any transportation documents (like freight orders or shipments) assigned to them.
  Resource Availability: The resources may not be available for the time period you are trying to schedule.
  Incorrect Resource Selection: The resources selected for scheduling may not be appropriate for the documents you are trying to process.
  Configuration Issues: There may be configuration issues in the Transportation Management settings that prevent the assignment of documents to resources.
  
  Solutions:
  
  
  Check Document Assignment:
  
  Ensure that the transportation documents you are trying to schedule are correctly assigned to the resources. You can do this by reviewing the document details and the resource assignments in the TM system.
  
  
  
  Verify Resource Availability:
  
  Check the availability of the resources you are trying to use. Make sure they are not already assigned to other tasks or are otherwise unavailable.
  
  
  
  Select Appropriate Resources:
  
  Ensure that you are selecting the correct resources that are capable of handling the specific transportation documents. For example, if you are scheduling a shipment that requires a specific type of vehicle, make sure that vehicle is selected.
  
  
  
  Review Configuration Settings:
  
  If the issue persists, review the configuration settings in the Transportation Management module. Ensure that all necessary settings for resource assignment and scheduling are correctly configured.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for additional guidance on the specific error message and its context.
  
  
  
  Check for Updates or Patches:
  
  Sometimes, issues can arise from bugs in the software. Check if there are any updates or patches available for your SAP system that might address this issue.
  
  
  
  Contact SAP Support:
  
  If you are unable to resolve the issue with the above steps, consider reaching out to SAP support for further assistance.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes in SAP TM that can help you manage resources and documents, such as /SCMTMS/ORDER for managing transportation orders.
  User Roles and Authorizations: Ensure that the user has the necessary roles and authorizations to access and manage the resources and documents in the TM module.
  Training and Documentation: Consider training sessions or reviewing documentation related to SAP TM to better understand how to manage resources and scheduling effectively.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.