How To Fix LTRT021 - Enter one source zone or one source zone group

SAP Error Message - Details

• Message type: E = Error

• Message class: LTRT - Ltrt Module Warnings

• Message number: 021

• Message text: Enter one source zone or one source zone group

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.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message LTRT021 - Enter one source zone or one source zone group ?

  The SAP error message LTRT021 ("Enter one source zone or one source zone group") typically occurs in the context of the SAP Transportation Management (TM) module, particularly when dealing with transportation planning and route determination.
  Cause:
  This error message indicates that the system requires either a source zone or a source zone group to be specified in the relevant transaction or configuration. The source zone is essential for determining the origin of the transportation process, and without it, the system cannot proceed with planning or executing transportation tasks.
  Solution:
  To resolve the LTRT021 error, you can take the following steps:
  
  
  Check Input Fields: Ensure that you have entered either a source zone or a source zone group in the relevant fields. If you are using a transaction that requires these inputs, make sure they are filled out correctly.
  
  
  Define Source Zones: If you do not have any source zones defined, you will need to create them. This can typically be done in the configuration settings of SAP TM:
  
  Navigate to the relevant configuration area (usually under Logistics > Transportation Management).
  Define the source zones and ensure they are correctly set up.
  
  
  
  Use Source Zone Groups: If you prefer to use a source zone group instead of individual zones, ensure that the group is defined and includes the necessary zones.
  
  
  Check Master Data: Verify that the master data related to locations, zones, and transportation lanes is correctly maintained. Incomplete or incorrect master data can lead to this error.
  
  
  Consult Documentation: If you are unsure about the configuration or the required fields, refer to the SAP documentation or help resources for guidance on setting up transportation zones and groups.
  
  
  Testing: After making the necessary changes, test the transaction again to see if the error persists.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional context.
  Transaction Codes: Familiarize yourself with transaction codes related to transportation management, such as /SCMTMS/PLANNER for planning or /SCMTMS/ZONE for managing zones.
  User Roles and Authorizations: Ensure that your user role has the necessary authorizations to access and modify transportation zones and related configurations.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP support team or a consultant who specializes in SAP TM for further assistance.