How To Fix TG520 - *** SUBST_DELETE_OLD_INDEXES

TG520 - Overview

• Message type: E = Error

• Message class: TG - Messages for Upgrade Repository Switch

• Message number: 520

• Message text: *** SUBST_DELETE_OLD_INDEXES

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 TG520 - *** SUBST_DELETE_OLD_INDEXES ?

  The SAP error message TG520 with the description "SUBST_DELETE_OLD_INDEXES" typically relates to issues encountered during the process of deleting old indexes in the SAP system. This error can occur in various contexts, such as during database maintenance or when performing certain operations that involve index management.
  
  Cause:
  The error can be caused by several factors, including:
  
  Database Locking Issues: If the database is locked or if there are ongoing transactions that prevent the deletion of old indexes, this error may occur.
  Insufficient Authorizations: The user executing the operation may not have the necessary authorizations to delete indexes.
  Corrupted Indexes: If the indexes are corrupted or if there are inconsistencies in the database, the system may fail to delete them.
  System 
  Configuration Issues: Incorrect configuration settings in the SAP system or the database can lead to this error.
  Database Constraints: Certain constraints or dependencies may prevent the deletion of specific indexes.
  
  
  Solution:
  To resolve the TG520 error, you can try