How To Fix VT645 - The system does not save the data

VT645 - Overview

• Message type: E = Error

• Message class: VT - Vertriebstabellen

• Message number: 645

• Message text: The system does not save the data

What causes this issue?

You have chosen the 'Terminate' function and your changes were not
saved. To exit data transfer use 'Back'; to leave the transaction use
'Exit'.

Error message extract from SAP system. Copyright SAP SE.

VT645 - Details

• The SAP error message VT645 ("The system does not save the data") typically occurs in the context of the SAP Transportation Management (TM) or SAP Vehicle Scheduling (VS) modules when there is an issue with saving data related to transportation planning or scheduling.
  Causes:
  
  Data Validation Errors: The data being entered may not meet the required validation rules. This could be due to missing mandatory fields, incorrect data formats, or inconsistencies in the data.
  Authorization Issues: The user may not have the necessary authorizations to save the data in the system.
  Technical Issues: There could be underlying technical issues such as database locks, system performance problems, or issues with the transport layer.
  
  Configuration Issues: Incorrect configuration settings in the transportation management module may lead to this error.
  Custom Code or Enhancements: If there are custom developments or enhancements in the system, they may interfere with the standard saving process.
  
  Solutions:
  
  Check Data Validity: Review the data being entered