How To Fix SAUL_ATC_CHECKS001 - Index ID '&1' is transformed during an upgrade to '~&2' or '^&2'

SAP Error Message - Details

• Message type: E = Error

• Message class: SAUL_ATC_CHECKS - Upgrade ATC Checks

• Message number: 001

• Message text: Index ID '&1' is transformed during an upgrade to '~&2' or '^&2'

What causes this issue?

The name of a secondary index of a database table in the ABAP Dictionary
may have 18 characters at most. It consists of the database table name
and an index ID with up to 3 characters. Database tables whose name
consist of 16 characters may cause problems during an upgrade <ZH>for
the following reason</>:
During an upgrade, the system generates shadow tables and adds to their
index name an additional single delimiter (~ or ^).
Table name &V3& consists of 16 characters and index ID '&V1&' will be
shortened to '~&V2&' or '^&V2&' for the shadow table to the index name
&V3&~&V2& or &V3&^&V2&.
This collides with the name of the primary index &V3&~0 or &V3&^0.

System Response

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

How to fix this error?

Choose another ID for the secondary index that is not truncated to '0'
for the shadow table.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message SAUL_ATC_CHECKS001 - Index ID '&1' is transformed during an upgrade to '~&2' or '^&2' ?

  The SAP error message SAUL_ATC_CHECKS001 indicates that an index with the specified ID (&1) is being transformed during an upgrade to a new version (~&2 or ^&2). This typically occurs when there are changes in the database structure or the way indexes are managed in the new version of SAP.
  Cause:
  
  Database Changes: The upgrade may involve changes to the database schema, which can include modifications to how indexes are defined or utilized.
  Index Optimization: SAP may have optimized the way certain indexes are created or maintained in the new version, leading to the transformation of existing indexes.
  Compatibility Issues: The existing index may not be compatible with the new version of the software, necessitating a transformation to ensure proper functionality.
  
  Solution:
  
  Review Upgrade Documentation: Check the release notes and upgrade documentation provided by SAP for the specific version you are upgrading to. This documentation often contains information about changes to indexes and how to handle them.
  Run Database Maintenance: After the upgrade, run database maintenance tasks to ensure that all indexes are properly rebuilt and optimized according to the new version's requirements.
  Check for Notes: Look for SAP Notes related to the specific error message or the version upgrade. SAP Notes often provide specific instructions or patches that can resolve issues encountered during upgrades.
  Consult SAP Support: If the issue persists or if you are unsure about the steps to take, consider reaching out to SAP Support for assistance. They can provide guidance tailored to your specific situation.
  
  Related Information:
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide additional context.
  Upgrade Guides: Refer to the official SAP upgrade guides for best practices and steps to follow during the upgrade process.
  Database Administration: Familiarize yourself with database administration tasks that may be required post-upgrade, such as index rebuilding, statistics updates, and performance tuning.
  
  By following these steps, you should be able to address the SAUL_ATC_CHECKS001 error and ensure a smooth upgrade process.