How To Fix CNV668 - Scheduling of jobs for re-creating the index failed

CNV668 - Overview

• Message type: E = Error

• Message class: CNV - Conversion: Messages for Conversion Services (CNCC)

• Message number: 668

• Message text: Scheduling of jobs for re-creating the index 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.

CNV668 - Details

• The SAP error message CNV668 indicates that there was a failure in scheduling jobs for re-creating the index during a data migration or conversion process, typically associated with the SAP S/4HANA migration or other data conversion projects. This error can arise due to various reasons, and addressing it involves several steps.
  Causes:
  
  Job Scheduling Issues: The job scheduler may not be able to schedule the job due to system load, resource constraints, or configuration issues.
  Authorization Problems: The user executing the job may not have the necessary authorizations to schedule or execute background jobs.
  System Configuration: There may be issues with the configuration of the background processing system or the job scheduling parameters.
  Database Locking: The database might be locked or busy with other operations, preventing the index re-creation job from being scheduled.
  Technical Errors: There could be underlying technical issues, such as missing transport requests, incorrect settings in the job definition, or issues with the