How To Fix TG688 - Error during generation of the deletion entries in table DDYTT

TG688 - Overview

• Message type: E = Error

• Message class: TG - Messages for Upgrade Repository Switch

• Message number: 688

• Message text: Error during generation of the deletion entries in table DDYTT

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message TG688 - Error during generation of the deletion entries in table DDYTT ?

  The SAP error message TG688, which indicates "Error during generation of the deletion entries in table DDYTT," typically occurs during the deletion of entries in the DDYTT table, which is related to the transport directory and transport management system in SAP.
  
  Cause:
  
  Data Inconsistency: There may be inconsistencies in the transport directory or related tables, which can prevent the system from generating deletion entries.
  Authorization Issues: The user executing the deletion may not have the necessary authorizations to perform the operation.
  Database Issues: There could be underlying database issues, such as locks or corruption, that prevent the operation from completing successfully.
  Transport Directory Issues: Problems with the transport directory itself, such as missing files or incorrect configurations, can lead to this error.
  
  
  Solution:
  
  Check Authorizations: Ensure that the user has the necessary authorizations to perform deletions in the transport directory.
  Consistency Check: Run consistency checks on the transport directory and related tables. You can use transaction codes like