How To Fix /SCMTMS/MC_TLOC_ASS420 - Reading of transportation zones for location selection failed

/SCMTMS/MC_TLOC_ASS420 - Overview

• Message type: E = Error

• Message class: /SCMTMS/MC_TLOC_ASS -

• Message number: 420

• Message text: Reading of transportation zones for location selection failed

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message /SCMTMS/MC_TLOC_ASS420 - Reading of transportation zones for location selection failed ?

  The SAP error message /SCMTMS/MC_TLOC_ASS420 indicates that there was a failure in reading transportation zones for location selection in the SAP Transportation Management (TM) module. This error typically arises during the process of determining transportation zones for a specific location, which is crucial for planning and executing transportation processes.
  Causes:
  
  
  Configuration Issues: The transportation zones may not be properly configured in the system. This could include missing or incorrect entries in the relevant customizing settings.
  Master Data Issues: The location master data may be incomplete or incorrect. This includes missing transportation zone assignments for the locations involved.
  Authorization Issues: The user may not have the necessary authorizations to access the transportation zone data.
  Technical Issues: There could be underlying technical issues, such as database connectivity problems or issues with the transport management system itself.
  
  Solutions:
  
  
  Check Configuration:
  
  Verify the configuration of transportation zones in the SAP TM customizing settings. Ensure that all necessary transportation zones are defined and