How To Fix WW642 - The version tree could not be saved. Internal error.

WW642 - Overview

• Message type: E = Error

• Message class: WW - Material group master maintenance

• Message number: 642

• Message text: The version tree could not be saved. Internal error.

What causes this issue?

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

System Response

How to fix this error?

INCLUDE ISR_VERWALTUNG

Error message extract from SAP system. Copyright SAP SE.

WW642 - Details

• The SAP error message WW642, which states "The version tree could not be saved. Internal error," typically occurs in the context of SAP's Project System (PS) or related modules where version management is involved. This error can arise due to various reasons, including data inconsistencies, system configuration issues, or problems with the underlying database.
  Possible Causes:
  
  Data Inconsistencies: There may be inconsistencies in the data related to the version tree, such as missing or corrupted entries.
  Authorization Issues: The user may not have the necessary authorizations to perform the action related to version management.
  Database Issues: There could be issues with the database, such as locks, corruption, or connectivity problems.
  Configuration Errors: Incorrect configuration settings in the project system or related modules may lead to this error.
  System Bugs: There may be bugs in the SAP system that could cause this error, especially if you are using an older version of SAP.
  
  Solutions:
  
  Check Authorizations: Ensure that the